KS3 Science biology Quiz on "Food, digestion, respiration, microbes, diseases and ecological relationships" (based on QCA 8A to 8D)

A healthy diet needs a balance of many things. Which is a main source of energy? [8a-1]
1. carbohydrates
2. protein
3. water
4. fibre
5. vitamins
6. minerals
A healthy diet needs a balance of many things. Which is needed for growth and tissue repairs? [8a-2]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. minerals
A healthy diet needs a balance of many things. Which is the nutrient solvent for the chemical reactions of life? [8a-3]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. minerals
A healthy diet needs a balance of many things. Which is important for the bowel to avoid constipation? [8a-4]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. vitamins
A healthy diet needs a balance of many things. Which is an energy store and organ heat insulator? [8a-5]
1. vitamins
2. protein
3. water
4. fibre
5. fats
6. minerals
A healthy diet needs a balance of many things. Which is needed in small amounts for good health? [8a-6]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. minerals
A healthy diet needs a balance of many things. Which is needed in small amounts for good health? [8a-7]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. vitamins
A healthy diet needs a balance of many things. Bread, potatoes and pasta are ALL good sources of? [8a-8]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. vitamins
A healthy diet needs a balance of many things. Meat, fish and cheese are ALL good sources of? [8a-9]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. minerals
A healthy diet needs a balance of many things. Drinks are the main sources of? [8a-10]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. vitamins
A healthy diet needs a balance of many things. Vegetables and wholemeal bread are ALL good sources of? [8a-11]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
A healthy diet needs a balance of many things. Butter, olive oil and margarine are ALL good sources of? [8a-12]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. minerals
A healthy diet needs a balance of many things. Fruit, vegetables and table salt are ALL a good sources of? [8a-13]
1. carbohydrates
2. protein
3. water
4. fibre
5. fats
6. minerals
A healthy diet needs a balance of many things. Fruit and vegetables are ALL good sources of? [8a-14]
1. carbohydrates
2. protein
3. water
4. fats
5. vitamins
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following dietary needs is mainly obtained from milk and cheese? [8a-15]
1. calcium
2. iron
3. vitamin C
4. sodium
5. fluorine
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following dietary needs is mainly obtained from liver and green vegetables? [8a-16]
1. calcium
2. iron
3. vitamin C
4. sodium
5. fluorine
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following dietary needs is mainly obtained from vegetables and fruit, but not meat? [8a-17]
1. calcium
2. iron
3. vitamin C
4. sodium
5. fluorine
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following dietary needs is mainly obtained from table salt? [8a-18]
1. calcium
2. iron
3. vitamin C
4. sodium
5. fluorine
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following dietary needs is mainly obtained from toothpaste? [8a-19]
1. calcium
2. iron
3. vitamin C
4. sodium
5. fluorine
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following part of our diet is needed for bone and teeth structure? [8a-20]
1. calcium
2. iron
3. vitamin C
4. sodium
5. potassium
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following part of our diet is needed for haemoglobin in red blood cells? [8a-21]
1. calcium
2. iron
3. vitamin C
4. sodium
5. fluorine
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following part of our diet is needed for healthy tissue like skin? [8a-22]
1. calcium
2. iron
3. vitamin C
4. sodium
5. fluorine
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following part of our diet is needed for nerve function? [8a-23]
1. calcium
2. iron
3. vitamin C
4. sodium
5. fluorine
Small amounts of minerals and vitamins are needed for good health and vitality!
Which of the following part of our diet is needed for hardening teeth enamel? [8a-24]
1. potassium
2. iron
3. vitamin C
4. sodium
5. fluorine
Which describes what happens in the mouth? [8a-25]
1. food mechanically broken into small pieces, enzymes from saliva added
2. food mixed with gastric juices, hydrochloric acid kills most harmful bacteria, creates pH to break down protein
3. alkali neutralises acid and helps break down fats, small food molecules absorbed into bloodstream
4. excess water absorbed into bloodstream, undigested waste converted to faeces
Which describes what happens in the stomach? [8a-26]
1. food mechanically broken into small pieces, enzymes from saliva added
2. food mixed with gastric juices, hydrochloric acid kills most harmful bacteria, creates pH to break down protein
3. alkali neutralises acid and helps break down fats, small food molecules absorbed into bloodstream
4. excess water absorbed into bloodstream, undigested waste converted to faeces
Which describes what happens in the small intestine? [8a-27]
1. food mechanically broken into small pieces, enzymes from saliva added
2. food mixed with gastric juices, hydrochloric acid kills most harmful bacteria, creates pH to break down protein
3. alkali neutralises acid and helps break down fats, small food molecules absorbed into bloodstream
4. excess water absorbed into bloodstream, undigested waste converted to faeces
Which describes what happens in the large intestine? [8a-28]
1. food mechanically broken into small pieces, enzymes from saliva added
2. food mixed with gastric juices, hydrochloric acid kills most harmful bacteria, creates pH to break down protein
3. alkali neutralises acid and helps break down fats, small food molecules absorbed into bloodstream
4. excess water absorbed into bloodstream, undigested waste converted to faeces
Which of the following are large molecules broken down to small molecules by the enzymes in saliva? [8a-29]
1. carbohydrates
2. protein
3. water
4. fibre
5. vitamins
Which of the following are large molecules broken down to small molecules by the enzymes and acid in the stomach? [8a-30]
1. minerals
2. protein
3. water
4. fibre
5. vitamins
Which of the following is the most abundant sort of molecule in the body? [8a-31]
1. carbohydrates
2. protein
3. water
4. fibre
5. fat
Which of the following is NOT digested and NOT absorbed by the small intestine? [8a-32]
1. carbohydrates
2. protein
3. water
4. fibre
5. minerals
Which of the following are small molecules or ions directly absorbed by the small intestine without digestion? [8a-33]
1. fibre
2. protein
3. fat
4. minerals
Which of the following are small molecules directly absorbed by the small intestine without digestion? [8a-34]
1. vitamins
2. fat
3. protein
4. fibre
Which of the following are large molecules broken down by alkali and enzymes to small molecules in the small intestine? [8a-35]
1. vitamins
2. fat
3. minerals
4. fibre
Which of the following are small molecules directly absorbed by the small intestine without digestion? [8a-36]
1. protein
2. fat
3. sugar
4. fibre
5. starch
Which of the following will a marathon runner most likely eat more of, over the few days before a race? [8a-37]
1. carbohydrates
2. protein
3. minerals
4. fibre
Which of the following will a weight lifter most likely eat more of than usual in a training period? [8a-38]
1. fats
2. protein
3. minerals
4. fibre
Which of the following if eaten too much causes a person to become too fat? [8a-39]
1. vitamins
2. protein
3. carbohydrates
4. fibre
Which of the following helps to reduce colon cancer? [8a-40]
1. carbohydrates
2. protein
3. sugars
4. fibre
Which of the following is NOT true about diet and digestion? [8a-41]
1. excess carbohydrate may be converted into protein
2. amino acids from protein cannot be stored in the body and the excess is excreted as urea
3. a constant supply of glucose circulates in the blood
4. food molecules are absorbed into the blood stream through membranes in the small intestine
Which of the following is NOT true about diet and digestion? [8a-42]
1. excess carbohydrate may be converted into fat
2. amino acids from protein can be stored in the body and used when required for growth and repair
3. a constant supply of glucose circulates in the blood
4. food molecules are absorbed into the blood stream through membranes in the small intestine
Which of the following is NOT true about diet and digestion? [8a-43]
1. excess carbohydrate may be converted into fat
2. amino acids from protein cannot be stored in the body and the excess is excreted as urea
3. glucose is stored in the body and released into the blood stream when needed
4. food molecules are absorbed into the blood stream through membranes in the small intestine
Which of the following is NOT true about diet and digestion? [8a-44]
1. excess carbohydrate may be converted into fat
2. amino acids from protein cannot be stored in the body and the excess is excreted as urea
3. a constant supply of glucose circulates in the blood
4. food molecules are absorbed into the blood stream through membranes in the stomach
Which of the following is NOT true about diet and digestion? [8a-45]
1. excess glucose is converted by the liver into water and carbon dioxide
2. eating vegetable oils rather than animal fats can reduce heart disease
3. digestion means breaking down large food molecules into small molecules which can be absorbed into the bloodstream
4. sugars, vitamins and minerals are small enough molecules to be absorbed directly into the bloodstream
5. protein, carbohydrates and fat molecules are too large to be directly absorbed into the bloodstream
Which of the following is NOT true about diet and digestion? [8a-46]
1. excess glucose is converted by the liver into glycogen which acts as a store of energy
2. eating animal fats rather than vegetable oils can reduce heart disease
3. digestion means breaking down large food molecules into small molecules which can be absorbed into the bloodstream
4. sugars, vitamins and minerals are small enough molecules to be absorbed directly into the bloodstream
5. protein, carbohydrates and fat molecules are too large to be directly absorbed into the bloodstream
Which of the following is NOT true about diet and digestion? [8a-47]
1. excess glucose is converted by the liver into glycogen which acts as a store of energy
2. eating vegetable oils rather than animal fats can reduce heart disease
3. digestion means combining small food molecules into larger molecules which can be used for growth and tissue repair
4. sugars, vitamins and minerals are small enough molecules to be absorbed directly into the bloodstream
5. protein, carbohydrates and fat molecules are too large to be directly absorbed into the bloodstream
Which of the following is NOT true about diet and digestion? [8a-48]
1. excess glucose is converted by the liver into glycogen which acts as a store of energy
2. eating vegetable oils rather than animal fats can reduce heart disease
3. digestion means breaking down large food molecules into small molecules which can be absorbed into the bloodstream
4. sugars, vitamins and mineral molecules are too large to be absorbed directly into the bloodstream
5. protein, carbohydrates and fat are large molecules
Which of the following is NOT true about diet and digestion? [8a-49]
1. excess glucose is converted by the liver into glycogen which acts as a store of energy
2. eating vegetable oils rather than animal fats can reduce heart disease
3. digestion means breaking down large food molecules into small molecules which can be absorbed into the bloodstream
4. sugars, vitamins and minerals are small enough molecules to be absorbed directly into the bloodstream
5. protein, carbohydrates and fat can be slowly absorbed into the bloodstream without being broken down into smaller molecules
Which part of the digestive system is the mouth? [8a-50]
1. part T
2. part U
3. part W
4. part X
5. part Y
Which part of the digestive system is the gullet? [8a-51]
1. part T
2. part U
3. part W
4. part X
5. part Y
Which part of the digestive system is the stomach? [8a-52]
1. part T
2. part U
3. part W
4. part X
5. part Y
Which part of the digestive system is the small intestine? [8a-53]
1. part T
2. part U
3. part W
4. part X
5. part Y
Which part of the digestive system is the large intestine? [8a-5]
1. part T
2. part U
3. part W
4. part X
5. part Y
What happens in part T of the digestion system? [8a-55]
1. food is mechanically broken into small pieces and enzymes from saliva added
2. food mixed with gastric juices, hydrochloric acid kills most harmful bacteria, creates pH to break down protein
3. alkali neutralises acid and helps break down fats, small food molecules absorbed into bloodstream
4. excess water absorbed into bloodstream, undigested waste converted to faeces
What happens in part W of the digestion system? [8a-56]
1. food is mechanically broken into small pieces and enzymes from saliva added
2. food mixed with gastric juices, hydrochloric acid kills most harmful bacteria, creates pH to break down protein
3. alkali neutralises acid and helps break down fats, small food molecules absorbed into bloodstream
4. excess water absorbed into bloodstream, undigested waste converted to faeces
What happens in part X of the digestion system? [8a-57]
1. food is mechanically broken into small pieces and enzymes from saliva added
2. food mixed with gastric juices, hydrochloric acid kills most harmful bacteria, creates pH to break down protein
3. alkali neutralises acid and helps break down fats, small food molecules absorbed into bloodstream
4. excess water absorbed into bloodstream, undigested waste converted to faeces
What happens in part Y of the digestion system? [8a-58]
1. food is mechanically broken into small pieces and enzymes from saliva added
2. food mixed with gastric juices, hydrochloric acid kills most harmful bacteria, creates pH to break down protein
3. alkali neutralises acid and helps break down fats, small food molecules absorbed into bloodstream
4. excess water absorbed into bloodstream, undigested waste converted to faeces
Respiration equation: __(1)__ + __(2)__ __(3)__ + __(4)__
(1) is a soluble solid that might be described as the 'fuel'.
(2) is a gas breathed in from air.
(3) is a gas breathed out from the lungs.
(4) is a colourless liquid.
What is the chemical identity of (1)? [8b-1]
1. glucose
2. oxygen
3. carbon dioxide
4. water
Respiration equation: __(1)__ + __(2)__ __(3)__ + __(4)__
(1) is a soluble solid that might be described as the 'fuel'.
(2) is a gas breathed in from air.
(3) is a gas breathed out from the lungs.
(4) is a colourless liquid.
What is the chemical identity of (2)? [8b-2]
1. glucose
2. oxygen
3. carbon dioxide
4. water
Respiration equation: __(1)__ + __(2)__ __(3)__ + __(4)__
(1) is a soluble solid that might be described as the 'fuel'.
(2) is a gas breathed in from air.
(3) is a gas breathed out from the lungs.
(4) is a colourless liquid.
What is the chemical identity of (3)? [8b-3]
1. glucose
2. oxygen
3. carbon dioxide
4. water
Respiration equation: __(1)__ + __(2)__ __(3)__ + __(4)__
(1) is a soluble solid that might be described as the 'fuel'.
(2) is a gas breathed in from air.
(3) is a gas breathed out from the lungs.
(4) is a colourless liquid.
What is the chemical identity of (4)? [8b-4]
1. glucose
2. oxygen
3. carbon dioxide
4. water
Respiration equation: __(1)__ + __(2)__ __(3)__ + __(4)__
(1) is a soluble solid, when heated with Benedicts solution a red-brown colour is formed.
(2) is a gas, when pure, relights a glowing splint.
(3) is a gas that bubbled into limewater turns it cloudy.
(4) is a colourless liquid boiling at 100^oC.
What is the chemical identity of (1)? [8b-5]
1. glucose
2. oxygen
3. carbon dioxide
4. water
Respiration equation: __(1)__ + __(2)__ __(3)__ + __(4)__
(1) is a soluble solid, when heated with Benedicts solution a red-brown colour is formed.
(2) is a gas, when pure, relights a glowing splint.
(3) is a gas that bubbled into limewater turns it cloudy.
(4) is a colourless liquid boiling at 100^oC.
What is the chemical identity of (2)? [8b-6]
1. glucose
2. oxygen
3. carbon dioxide
4. water
Respiration equation: __(1)__ + __(2)__ __(3)__ + __(4)__
(1) is a soluble solid, when heated with Benedicts solution a red-brown colour is formed.
(2) is a gas, when pure, relights a glowing splint.
(3) is a gas that bubbled into limewater turns it cloudy.
(4) is a colourless liquid boiling at 100^oC.
What is the chemical identity of (3)? [8b-7]
1. glucose
2. oxygen
3. carbon dioxide
4. water
Respiration equation: __(1)__ + __(2)__ __(3)__ + __(4)__
(1) is a soluble solid, when heated with Benedicts solution a red-brown colour is formed.
(2) is a gas, when pure, relights a glowing splint.
(3) is a gas that bubbled into limewater turns it cloudy.
(4) is a colourless liquid boiling at 100^oC.
What is the chemical identity of (4)? [8b-8]
1. glucose
2. oxygen
3. carbon dioxide
4. water
Which of the following matches the word digestion? [8b-9]
1. 'making small glucose molecules from big starch molecules'
2. 'glucose molecules slowly absorbed into the bloodstream through a membrane'
3. 'oxygen and glucose are rapidly moved around in the bloodstream'
4. 'glucose reacts with oxygen to release energy'
Which of the following matches the word diffusion? [8b-10]
1. 'making small glucose molecules from big starch molecules'
2. 'glucose molecules absorbed into the bloodstream through a membrane'
3. 'oxygen and glucose are moved around in the bloodstream'
4. 'glucose reacts with oxygen to release energy'
Which of the following matches the word transportation? [8b-11]
1. 'making small glucose molecules from big starch molecules'
2. 'glucose molecules absorbed into the bloodstream through a membrane'
3. 'oxygen and glucose are moved around in the bloodstream'
4. 'glucose reacts with oxygen to release energy'
Which of the following matches the word respiration? [8b-12]
1. 'making small glucose molecules from big starch molecules'
2. 'glucose molecules absorbed into the bloodstream through a membrane'
3. 'oxygen and glucose are moved around in the bloodstream'
4. 'glucose reacts with oxygen to release energy'
A manual roadworker, an office worker, a marathon runner in training and an injured person all have different daily energy requirements in kJ/day. Respiration supplies the energy needs of them. Which of the following is the most likely energy requirement of the road gang worker? [8b-13]
1. 19000 kJ/day
2. 13000 kJ/day
3. 22000 kJ/day
4. 10000 kJ/day
A manual roadworker, an office worker, a marathon runner in training and an injured person all have different daily energy requirements in kJ/day. Respiration supplies the energy needs of them. Which of the following is the most likely energy requirement of the office worker? [8b-14]
1. 19000 kJ/day
2. 13000 kJ/day
3. 22000 kJ/day
4. 10000 kJ/day
A manual roadworker, an office worker, a marathon runner in training and an injured person all have different daily energy requirements in kJ/day. Respiration supplies the energy needs of them. Which of the following is the most likely energy requirement of the marathon runner? [8b-15]
1. 19000 kJ/day
2. 13000 kJ/day
3. 22000 kJ/day
4. 10000 kJ/day
A manual roadworker, an office worker, a marathon runner in training and an injured person all have different daily energy requirements in kJ/day. Respiration supplies the energy needs of them. Which of the following is the most likely energy requirement of the injured person? [8b-16]
1. 19000 kJ/day
2. 13000 kJ/day
3. 22000 kJ/day
4. 10000 kJ/day
Which matches the pair of lungs? [8b-17]
1. W
2. Y
3. Z
4. U
5. V
Which matches the ribs? [8b-18]
1. W
2. Y
3. Z
4. U
5. V
Which matches the trachea (windpipe)? [8b-19]
1. W
2. Y
3. Z
4. U
5. V
Which matches the bronchus? [8b-20]
1. W
2. Y
3. Z
4. U
5. V
Which matches the alveoli? [8b-21]
1. W
2. Y
3. Z
4. U
5. V
[8b-22] Which statement is FALSE about respiration?
1. both carbon dioxide and oxygen both are needed for respiration
2. both water and carbon dioxide are both waste products from respiration
3. in the lungs, oxygen from air passes from the alveoli to tiny blood vessels
4. in the lungs, carbon dioxide passes from tiny blood vessels into the alveoli
[8b-23] Which statement is FALSE about respiration?
1. both oxygen and glucose are needed for respiration
2. both water and carbon monoxide are waste products from respiration
3. in the lungs, oxygen from air passes from the alveoli to tiny blood vessels
4. in the lungs, carbon dioxide passes from tiny blood vessels into the alveoli
[8b-24] Which statement is FALSE about respiration?
1. both oxygen and glucose are needed for respiration
2. both water and carbon dioxide are waste products from respiration
3. in the lungs, oxygen from air passes from tiny blood vessels to the alveoli
4. carbon dioxide produced in respiration is transported by blood flow to the lungs
[8b-25] Which statement is FALSE about respiration?
1. both oxygen and glucose are needed for respiration
2. both water and carbon dioxide are waste products from respiration
3. oxygen from air is transported by blood flow from the lungs to all cells
4. in the lungs, carbon dioxide passes from the alveoli to tiny blood vessels
[8b-26] Which statement is FALSE about respiration?
1. gases easily pass across the wall of the alveolus because it mainly consists of water
2. gas exchange in the lungs is very efficient because of the large surface area of the alveoli
3. dust particles can damage the lung by irritating and covering the inner alveoli surface
4. a face mask filters out dust particles that can irritate or damage the lungs
5. emphysema victims have difficulty breathing because the damaged alveoli have less surface area
[8b-27] Which statement is FALSE about respiration?
1. gases easily pass across the wall of the alveolus because it is thin
2. gas exchange in the lungs is very efficient because of the small surface area of the alveoli
3. dust particles can damage the lung by irritating and covering the inner alveoli surface
4. a face mask filters out dust particles that can irritate or damage the lungs
5. emphysema victims have difficulty breathing because the damaged alveoli have less surface area
[8b-28] Which statement is FALSE about respiration?
1. gases easily pass across the wall of the alveolus because it is thin
2. gas exchange in the lungs is very efficient because of the large surface area of the alveoli
3. dust particles can damage the lung by covering the surface of the blood vessels next to the alveoli
4. a face mask filters out dust particles that can irritate or damage the lungs
5. emphysema victims have difficulty breathing because the damaged alveoli have less surface area
[8b-29] Which statement is FALSE about respiration?
1. gases easily pass across the wall of the alveolus because it is thin
2. gas exchange in the lungs is very efficient because of the large surface area of the alveoli
3. dust particles can damage the lung by irritating and covering the inner alveoli surface
4. a face mask distils out dust particles that can irritate or damage the lungs
5. emphysema victims have difficulty breathing because the damaged alveoli have less surface area
[8b-30] Which statement is FALSE about respiration?
1. gases easily pass across the wall of the alveolus because it is thin
2. gas exchange in the lungs is very efficient because of the large surface area of the alveoli
3. dust particles can damage the lung by irritating and covering the inner alveoli surface
4. a face mask filters out dust particles that can irritate or damage the lungs
5. emphysema victims have difficulty breathing because the damaged alveoli have no tiny blood vessels connected to them
Which statement is FALSE when comparing respiration and burning a fuel? [8b-31]
1. respiration is fast and not controlled, burning is rapid and controlled
2. both respiration and burning produce waste water and carbon dioxide
3. both respiration and burning use up oxygen
4. both respiration and burning release heat energy, but only burning gives out light too
Which statement is FALSE when comparing respiration and burning a fuel? [8b-32]
1. respiration is slow and controlled, burning is rapid and not controlled
2. only burning produces waste water
3. both respiration and burning use up oxygen
4. both respiration and burning release heat energy, but only burning gives out light too
Which statement is FALSE when comparing respiration and burning a fuel? [8b-33]
1. respiration is slow and controlled, burning is rapid and not controlled
2. both respiration and burning produce waste water and carbon dioxide
3. only respiration uses up oxygen from the air
4. both respiration and burning release heat energy, but only burning gives out light too
Which statement is FALSE when comparing respiration and burning a fuel? [8b-34]
1. respiration is slow and controlled, burning is rapid and not controlled
2. both respiration and burning produce waste water and carbon dioxide
3. both respiration and burning use up oxygen
4. both respiration and burning only release energy as heat
Below is a list of molecules involved in energy production from digestion and respiration. Which is the formula for carbon dioxide? [8b-35]
1. CO₂
2. O₂
3. H₂O
4. C₆H₁₂O₆
5. (C₆H₁₀O₅)₁₀₀₀
Below is a list of molecules involved in energy production from digestion and respiration. Which is the formula for oxygen? [8b-36]
1. CO₂
2. O₂
3. H₂O
4. C₆H₁₂O₆
5. (C₆H₁₀O₅)₁₀₀₀
Below is a list of molecules involved in energy production from digestion and respiration. Which is the formula for water? [8b-37]
1. CO₂
2. O₂
3. H₂O
4. C₆H₁₂O₆
5. (C₆H₁₀O₅)₁₀₀₀
Below is a list of molecules involved in energy production from digestion and respiration. Which is the formula for glucose? [8b-38]
1. CO₂
2. O₂
3. H₂O
4. C₆H₁₂O₆
5. (C₆H₁₀O₅)₁₀₀₀
Below is a list of molecules involved in energy production from digestion and respiration. Which is the formula for starch? [8b-39]
1. CO₂
2. O₂
3. H₂O
4. C₆H₁₂O₆
5. (C₆H₁₀O₅)₁₀₀₀
The gases from (i) air breathed in, (ii) air breathed out, (iii) just above a lit bunsen burner flame and (iv) the gases left over after burning a candle inside an up-turned beaker where analysed. From the results quoted below, which analysis is most likely to be from the bunsen flame? [8b-40]
1. 74% nitrogen, 1% oxygen, 11% carbon dioxide, 14% water vapour
2. 78% nitrogen, 21% oxygen, 0.04% carbon dioxide, 1% water vapour
3. 76% nitrogen, 15% oxygen, 4% carbon dioxide, 5% water vapour
4. 75% nitrogen, 10% oxygen, 8% carbon dioxide, 7% water vapour
The gases from (i) air breathed in, (ii) air breathed out, (iii) just above a lit bunsen burner flame and (iv) the gases left over after burning a candle inside an up-turned beaker where analysed. From the results quoted below, which analysis is most likely to be from inhaled 'natural' air? [8b-41]
1. 74% nitrogen, 1% oxygen, 11% carbon dioxide, 14% water vapour
2. 78% nitrogen, 21% oxygen, 0.04% carbon dioxide, 1% water vapour
3. 76% nitrogen, 15% oxygen, 4% carbon dioxide, 5% water vapour
4. 75% nitrogen, 10% oxygen, 8% carbon dioxide, 7% water vapour
The gases from (i) air breathed in, (ii) air breathed out, (iii) just above a lit bunsen burner flame and (iv) the gases left over after burning a candle inside an up-turned beaker where analysed. From the results quoted below, which analysis is most likely to be from exhaled air (breathed out)? [8b-42]
1. 74% nitrogen, 1% oxygen, 11% carbon dioxide, 14% water vapour
2. 78% nitrogen, 21% oxygen, 0.04% carbon dioxide, 1% water vapour
3. 76% nitrogen, 15% oxygen, 4% carbon dioxide, 5% water vapour
4. 75% nitrogen, 10% oxygen, 8% carbon dioxide, 7% water vapour
The gases from (i) air breathed in, (ii) air breathed out, (iii) just above a lit bunsen burner flame and (iv) the gases left over after burning a candle inside an up-turned beaker where analysed. From the results quoted below, which analysis is most likely to be from the residual air from candle burning? [8b-43]
1. 74% nitrogen, 1% oxygen, 11% carbon dioxide, 14% water vapour
2. 78% nitrogen, 21% oxygen, 0.04% carbon dioxide, 1% water vapour
3. 76% nitrogen, 15% oxygen, 4% carbon dioxide, 5% water vapour
4. 75% nitrogen, 10% oxygen, 8% carbon dioxide, 7% water vapour
Which statement is FALSE concerning diet and respiration? [8b-44]
1. there is no chemical energy stored in fibre
2. the more physically active you are, the more quickly your energy reserves are reduced
3. glucose provides energy quicker than starch because glucose can be directly absorbed into the blood stream
4. starch provides energy slower than glucose because starch has to be digested before it is absorbed into the blood stream
Which statement is FALSE concerning diet and respiration? [8b-4]
1. chemical energy stored in fibre cannot be used because the fibre cannot be digested
2. the more physically active you are, the more quickly your energy reserves are increased
3. glucose provides energy quicker than starch because glucose can be directly absorbed into the blood stream
4. starch provides energy slower than glucose because starch has to be digested before it is absorbed into the blood stream
Which statement is FALSE concerning diet and respiration? [8b-46]
1. chemical energy stored in fibre cannot be used because the fibre cannot be digested
2. the more physically active you are, the more quickly your energy reserves are reduced
3. glucose provides energy much quicker than starch because glucose has a much higher energy content
4. starch provides energy slower than glucose because starch has to be digested before it is absorbed into the blood stream
Which statement is FALSE concerning diet and respiration? [8b-47]
1. chemical energy stored in fibre cannot be used because the fibre cannot be digested
2. the more physically active you are, the more quickly your energy reserves are reduced
3. glucose provides energy quicker than starch because glucose can be directly absorbed into the blood stream
4. starch provides energy slower than glucose because starch has to be stored before it is absorbed into the blood stream
The body has many natural defences against harmful materials including microbes that cause disease. Which 'defence' relates to your eyes? [8c-1]
1. produces an antiseptic liquid when irritated
2. acts as a barrier to germs and produces an antiseptic oil
3. sticky mucous traps microbes which is removed by cilia cells
4. platelets produce clots which dry to form a barrier to germs
5. white cells surround and destroy microbes
The body has many natural defences against harmful microbes that cause disease. Which 'defence' relates to your 'unharmed' skin? [8c-2]
1. produces an antiseptic liquid when irritated
2. acts as a barrier to germs and produces an antiseptic oil
3. sticky mucous traps microbes which is removed by cilia cells
4. platelets produce clots which dry to form a barrier to germs
5. contains acid that kills most harmful bacteria
The body has many natural defences against harmful microbes that cause disease. Which 'defence' relates to your respiratory system? [8c-3]
1. white cells surround and destroy microbes
2. acts as a barrier to germs and produces an antiseptic oil
3. sticky mucous traps microbes which is removed by cilia cells
4. platelets produce clots which dry to form a barrier to germs
5. contains acid that kills most harmful bacteria
The body has many natural defences against harmful materials including microbes that cause disease. Which 'defence' relates to a skin cut? [8c-4]
1. produces an antiseptic liquid when irritated
2. acts as a barrier to germs and produces an antiseptic oil
3. sticky mucous traps microbes which is removed by cilia cells
4. platelets produce clots which dry to form a barrier to germs
5. contains acid that kills most harmful bacteria
The body has many natural defences against harmful microbes that cause disease. Which 'defence' relates to your circulatory blood system? [8c-5]
1. produces an antiseptic liquid when irritated
2. acts as a barrier to germs and produces an antiseptic oil
3. sticky mucous traps microbes which is removed by cilia cells
4. contains acid that kills most harmful bacteria
5. white cells surround and destroy microbes
The body has many natural defences against harmful materials including microbes that cause disease. Which 'defence' relates to your stomach? [8c-6]
1. contains acid that kills most harmful bacteria
2. acts as a barrier to germs and produces an antiseptic oil
3. sticky mucous traps microbes which is removed by cilia cellsbes which is moved by cilia cells
4. platelets produce clots which dry to form a barrier to germs
5. white cells surround and destroy microbes
Which of the following summaries describes a virus? [8c-7]
1. it has a protein coat, has genes, no cytoplasm, can only reproduce in living 'host' cells and damages them, not destroyed by antibiotics, extremely small (many cannot be seen even with a powerful optical microscope)
2. it has a cell wall (not cellulose) and cell membrane, has genes and cytoplasm, no nucleus, produces toxins, can reproduce outside living cells and is destroyed by antibiotics
3. it is a single cell or cellular filaments with nucleus containing genes surrounded by cytoplasm but does not contain chlorophyl
Which of the following summaries describes a bacteria? [8c-8]
1. it has a protein coat, has genes, no cytoplasm, can only reproduce in living 'host' cells and damages them, not destroyed by antibiotics, extremely small (many cannot be seen even with a powerful optical microscope)
2. it has a cell wall (not cellulose) and cell membrane, has genes and cytoplasm, no nucleus, produces toxins, can reproduce outside living cells and is destroyed by antibiotics
3. it is a single cell or cellular filaments with nucleus containing genes surrounded by cytoplasm but does not contain chlorophyl
Which of the following summaries describes a fungus? [8c-9]
1. it has a protein coat, has genes, no cytoplasm, can only reproduce in living 'host' cells and damages them, not destroyed by antibiotics, extremely small (many cannot be seen even with a powerful optical microscope)
2. it has a cell wall (not cellulose) and cell membrane, has genes and cytoplasm, no nucleus, produces toxins, can reproduce outside living cells and is destroyed by antibiotics
3. it is a single cell or cellular filaments with nucleus containing genes surrounded by cytoplasm but does not contain chlorophyl
Which of the following describes the word vaccination? [8c-10]
1. injection of dead or weakened micro-organism to stimulate production of antibodies
2. the result of a micro-organism entering the body and causing disease
3. kills, or prevents the growth of bacteria on external parts of the body
4. kills, or prevents the growth of bacteria in the body
5. a micro-organism that can cause a disease
Which of the following describes the word infection? [8c-11]
1. injection of dead or weakened micro-organism to stimulate production of antibodies
2. the result of a micro-organism entering the body and causing disease
3. kills, or prevents the growth of bacteria on external parts of the body
4. kills, or prevents the growth of bacteria in the body
5. a protein made by white blood cells that can help destroy microbes
Which of the following describes the word antiseptic? [8c-12]
1. injection of dead or weakened micro-organism to stimulate production of antibodies
2. the result of a micro-organism entering the body and causing disease
3. kills, or prevents the growth of bacteria on external parts of the body
4. kills, or prevents the growth of bacteria in the body
5. a protein made by white blood cells that can help destroy microbes
Which of the following describes the word antibiotic? [8c-13]
1. a protein made by white blood cells that can help destroy microbes
2. the result of a micro-organism entering the body and causing disease
3. a protein made by white blood cells that can help destroy microbes
4. kills, or prevents the growth of bacteria in the body
5. a micro-organism that can cause a disease
Which of the following describes the word pathogen>? [8c-14]
1. injection of dead or weakened micro-organism to stimulate production of antibodies
2. a protein made by white blood cells that can help destroy microbes
3. kills, or prevents the growth of bacteria on external parts of the body
4. kills, or prevents the growth of bacteria in the body
5. a micro-organism that can cause a disease
Which of the following describes the word antibody? [8c-15]
1. injection of dead or weakened micro-organism to stimulate production of antibodies
2. the result of a micro-organism entering the body and causing disease
3. kills, or prevents the growth of bacteria on external parts of the body
4. kills, or prevents the growth of bacteria in the body
5. a protein made by white blood cells that can help destroy microbes
In an experiment to investigate the speed of 200g of dough rising in bread making, the following sugar additions and temperatures where used. For which set of conditions would you expect the dough to rise the slowest? [8c-16]
1. 2.0g sugar, 20^oC
2. 3.5g sugar, 35^oC
3. 2.0g sugar, 35^oC
4. 3.5g sugar, 20^oC
In an experiment to investigate the speed of 200g of dough rising in bread making, the following sugar additions and temperatures where used. For which set of conditions would you expect the dough to rise the fastest? [8c-17]
1. 2.0g sugar, 20^oC
2. 3.5g sugar, 35^oC
3. 2.0g sugar, 35^oC
4. 3.5g sugar, 20^oC
Which of the following is a micro-organism that helps bread rise in baking? [8c-18]
1. yoghurt
2. salt
3. yeast
4. bicarbonate of soda
Which of the following is a NOT a micro-organism, but helps bread rise in baking? [8c-19]
1. yoghurt
2. salt
3. yeast
4. bicarbonate of soda
You can grow micro-organisms in a __(1)__ containing a gelatinous layer of __(2)__ mixed with __(3)__ to feed on. The __(4)__ are spread across the gel using a __(5)__ wire loop.

Which word(s) is/are missing from __(1)__? [8c-20]
1. petri dish
2. agar
3. nutrients
4. bacteria
5. sterilised
You can grow micro-organisms in a __(1)__ containing a gelatinous layer of __(2)__ mixed with __(3)__ to feed on. The __(4)__ are spread across the gel using a __(5)__ wire loop.

Which word(s) is/are missing from __(2)__? [8c-21]
1. petri dish
2. agar
3. nutrients
4. bacteria
5. sterilised
You can grow micro-organisms in a __(1)__ containing a gelatinous layer of __(2)__ mixed with __(3)__ to feed on. The __(4)__ are spread across the gel using a __(5)__ wire loop.

Which word(s)) is/are missing from __(3)__? [8c-22]
1. petri dish
2. agar
3. nutrients
4. bacteria
5. sterilised
You can grow micro-organisms in a __(1)__ containing a gelatinous layer of __(2)__ mixed with __(3)__ to feed on. The __(4)__ are spread across the gel using a __(5)__ wire loop.

Which word(s) is/are missing from __(4)__? [8c-23]
1. petri dish
2. agar
3. nutrients
4. bacteria
5. sterilised
You can grow micro-organisms in a __(1)__ containing a gelatinous layer of __(2)__ mixed with __(3)__ to feed on. The __(4)__ are spread across the gel using a __(5)__ wire loop.

Which word(s) is/are missing from __(5)__? [8c-24]
1. petri dish
2. agar
3. nutrients
4. bacteria
5. sterilised
Which of the following is TRUE? [8c-25]
1. antibiotics like penicillin, stop bacteria reproducing
2. viruses can't cause diseases
3. white blood cells can't kill harmful micro-organisms
4. antibodies in your blood help form a protective scab over a cut
5. while still in the womb, a baby cannot get antibodies from its mother
Which of the following is TRUE? [8c-26]
1. antibiotics like penicillin, stop viruses reproducing
2. viruses can cause diseases
3. white blood cells can't kill harmful micro-organisms
4. antibodies in your blood help form a protective scab over a cut
5. while still in the womb, a baby cannot get antibodies from its mother
Which of the following is TRUE? [8c-27]
1. antibiotics like penicillin, stop viruses reproducing
2. viruses can't cause diseases
3. white blood cells can kill harmful micro-organisms
4. antibodies in your blood help form a protective scab over a cut
5. while still in the womb, a baby cannot get antibodies from its mother
Which of the following is TRUE? [8c-28]
1. antibiotics like penicillin, stop viruses reproducing
2. viruses can't cause diseases
3. white blood cells can't kill harmful micro-organisms
4. platelets in your blood help form a protective scab over a cut
5. while still in the womb, a baby cannot get antibodies from its mother
Which of the following is TRUE? [8c-29]
1. antibiotics like penicillin, stop viruses reproducing
2. viruses can't cause diseases
3. white blood cells can't kill harmful micro-organisms
4. antibodies in your blood help form a protective scab over a cut
5. while still in the womb, a baby can get antibodies from its mother
Which of the following matches the word sterilisation? [8c-30]
1. drinking water is treated with chlorine before domestic use
2. the result of being injected with a dead or weakened form of a micro-organism to stimulate antibody production
3. using yeast and sugar solution to make alcohol
4. milk is treated to remove some fat to make it semi-skimmed
Which of the following matches the word immunisation? [8c-31]
1. drinking water is treated with chlorine before domestic use
2. the result of being injected with a dead or weakened form of a micro-organism to stimulate antibody production
3. using yeast and sugar solution to make alcohol
4. milk is heated to a high temperature for a short time before selling to customer
Which of the following matches the word fermentation? [8c-32]
1. drinking water is treated with chlorine before domestic use
2. the result of being injected with a dead or weakened form of a micro-organism to stimulate antibody production
3. using yeast and sugar solution to make alcohol
4. milk is heated to a high temperature for a short time before selling to customer
Which of the following matches the word pasteurisation? [8c-33]
1. drinking water is treated with chlorine before domestic use
2. the result of being injected with a dead or weakened form of a micro-organism to stimulate antibody production
3. using yeast and sugar solution to make alcohol
4. milk is heated to a high temperature for a short time before selling to customer
Very small living things that can only be seen with a __(1)__ and are called __(2)__. Some are __(3)__ like __(4)__ used in breadmaking. However, others are __(5)__ causing diseases like __(6)__.

Which missing word is __(1)__? [8c-34]
1. microscope
2. microbes
3. useful
4. yeast
5. harmful
6. cholera
Very small living things that can only be seen with a __(1)__ and are called __(2)__. Some are __(3)__ like __(4)__ used in breadmaking. However, others are __(5)__ causing diseases like __(6)__.

Which missing word is __(2)__? [8c-35]
1. microscope
2. microbes
3. useful
4. yeast
5. harmful
6. cholera
Very small living things that can only be seen with a __(1)__ and are called __(2)__. Some are __(3)__ like __(4)__ used in breadmaking. However, others are __(5)__ causing diseases like __(6)__.

Which missing word is __(3)__? [8c-36]
1. microscope
2. microbes
3. useful
4. yeast
5. harmful
6. cholera
Very small living things that can only be seen with a __(1)__ and are called __(2)__. Some are __(3)__ like __(4)__ used in breadmaking. However, others are __(5)__ causing diseases like __(6)__.

Which missing word is __(4)__? [8c-37]
1. microscope
2. microbes
3. useful
4. yeast
5. harmful
6. cholera
Very small living things that can only be seen with a __(1)__ and are called __(2)__. Some are __(3)__ like __(4)__ used in breadmaking. However, others are __(5)__ causing diseases like __(6)__.

Which missing word is __(5)__? [8c-38]
1. microscope
2. microbes
3. useful
4. yeast
5. harmful
6. cholera
Very small living things that can only be seen with a __(1)__ and are called __(2)__. Some are __(3)__ like __(4)__ used in breadmaking. However, others are __(5)__ causing diseases like __(6)__.

Which missing word is __(6)__? [8c-39]
1. microscope
2. microbes
3. useful
4. yeast
5. harmful
6. cholera
The diagram shows possible number pyramids for a four organism food chain.
Which section represents the producer? [8d-1]
1. section u
2. section v
3. section w
4. section x
The diagram shows possible number pyramids for a four organism food chain.
Which section represents the primary consumer? [8d-2]
1. section u
2. section v
3. section w
4. section x
The diagram shows possible number pyramids for a four organism food chain.
Which section represents the secondary consumer? [8d-3]
1. section u
2. section v
3. section w
4. section x
The diagram shows possible number pyramids for a four organism food chain.
Which section represents the tertiary consumer? [8d-4]
1. section u
2. section v
3. section w
4. section x
Which of the following are all producers? [8d-5]
1. algae, plankton and seaweed
2. crab, herring, limpet and mussel
3. crab, dolphin, seagull, seal and starfish
4. dolphin, eskimo and seagull
Which of the following are all primary consumers? [8d-6]
1. algae, plankton and seaweed
2. crab, herring, limpet and mussel
3. crab, dolphin, seagull, seal and starfish
4. eskimo, seal and seagull
Which of the following are all secondary consumers? [8d-7]
1. algae, plankton and seaweed
2. crab, herring, limpet and mussel
3. crab, dolphin, seagull, seal and starfish
4. dolphin, eskimo and seagull
Which of the following are all tertiary consumers? [8d-8]
1. algae, plankton and seaweed
2. crab, herring, limpet and mussel
3. crab, dolphin, seagull, seal and starfish
4. seal, seagull and eskimo
Which of the following lists all the top carnivores? [8d-9]
1. algae, plankton and seaweed
2. crab, herring, limpet and mussel
3. crab, dolphin, seagull, seal and starfish
4. dolphin, seal and seagull
Which of the following is NOT a correct food chain? [8d-10]
1. plankton => mussel => limpet => seagull
2. algae => limpet => crab => seal
3. seaweed => limpet => starfish => seagull
4. algae => crab => seal => eskimo
Which of the following is NOT a correct food chain? [8d-11]
1. plankton => mussel => starfish => seagull
2. algae => mussel => crab => starfish
3. seaweed => limpet => starfish => seagull
4. algae => crab => seal => eskimo
Which of the following is NOT a correct food chain? [8d-12]
1. plankton => mussel => starfish => seagull
2. algae => limpet => crab => seal
3. seaweed => limpet => starfish => seal
4. algae => crab => seal => eskimo
Which of the following is NOT a correct food chain? [8d-13]
1. plankton => mussel => starfish => seagull
2. algae => limpet => crab => seal
3. seaweed => limpet => starfish => seagull
4. plankton => herring => starfish => seagull
Which of the following is an omnivore? [8d-14]
1. crab
2. limpet
3. starfish
4. algae
Which of the following is a herbivore? [8d-15]
1. crab
2. limpet
3. starfish
4. algae
Which of the following is only a carnivore? [8d-16]
1. crab
2. limpet
3. starfish
4. algae
Which of the following is a producer? [8d-17]
1. crab
2. limpet
3. starfish
4. algae
Which of the following is a producer? [8d-1]
1. seaweed
2. mussel
3. seagull
4. crab
Which of the following is a herbivore? [8d-1]
1. seaweed
2. mussel
3. seagull
4. crab
Which of the following is a carnivore? [8d-20]
1. seaweed
2. mussel
3. seagull
4. crab
Which of the following are predators AND prey? [8d-2]1
1. seal, starfish and crab
2. herring and mussel
3. dolphin, eskimo and seagull
4. algae, plankton and seaweed
Which of the following are prey but NOT predators? [8d-22]
1. seal, starfish and crab
2. herring and mussel
3. dolphin, eskimo and seagull
4. algae, plankton and seaweed
Which of the following are predators and NOT prey? [8d-23]
1. seal, starfish and crab
2. herring and mussel
3. dolphin, eskimo and seagull
4. algae, plankton and seaweed
Which of the following are NOT prey or predator? [8d-24]
1. seal, starfish and crab
2. herring and mussel
3. dolphin, eskimo and seagull
4. algae, plankton and seaweed
[8d-25]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid best represents the food chain: mosses => beetles => birds => sparrowhawk?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-26]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid best represents the food chain: grass => rabbits => foxes => fleas?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-27]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid represents the food chain: grass => cattle => ticks => birds?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-28]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid represents the food chain: rosebush => greenfly => ladybirds => swallows?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-29]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid represents the food chain: fruitbush => catterpillars => birds => fleas?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-30]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid represents the food chain: algae => crabs => seals => eskimos?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-31]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid represents the food chain: grasses => zebra => lion => fleas?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-32]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid represents the food chain: grass => antelope => mites => birds?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-33]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid represents the food chain: tree => beetles => mice => owls?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-34]
The diagram shows five possible number pyramids for a four organism food chain. Which number pyramid represents the food chain: tree => monkeys => tigers => mosquitos?
1. number pyramid 1
2. number pyramid 2
3. number pyramid 3
4. number pyramid 4
5. number pyramid 5
[8d-35]
Which of the following is a herbivore?
1. rabbit
2. mouse
3. weasel
4. tree
[8d-36]
Which of the following is an omnivore?
1. rabbit
2. mouse
3. weasel
4. tree
[8d-37]
Which of the following is a carnivore?
1. rabbit
2. mouse
3. weasel
4. tree
[8d-38]
Which of the following is a producer?
1. rabbit
2. mouse
3. weasel
4. tree
[8d-39]
Which of the following is prey only?
1. woodlice
2. owl
3. mouse
4. fruits
[8d-40]
Which of the following is a predator only?
1. woodlice
2. owl
3. mouse
4. fruits
[8d-41]
Which of the following is both prey and predator?
1. woodlice
2. owl
3. mouse
4. fruits
[8d-42]
Which of the following is neither prey or a predator?
1. woodlice
2. owl
3. mouse
4. fruits
[8d-43]
Which of the following is an unlikely population change and reason?
1. if fox numbers increase, owls may increase in number because there is more food for them
2. if fox numbers increase, weasels may decrease in number because there is less food for them
3. if insect eating bird numbers decrease, mice numbers could increase because there is more food for them
4. if insect eating bird numbers decrease, mice numbers could decrease because there is less choice of food for owls
[8d-44]
Which of the following is an unlikely population change and reason?
1. if fox numbers increase, owls may decrease in number because there is less food for them
2. if fox numbers increase, weasels may increase in number because there is more food for them
3. if insect eating bird numbers decrease, mice numbers could increase because there is more food for them
4. if insect eating bird numbers decrease, mice numbers could decrease because there is less choice of food for owls
[8d-45]
Which of the following is an unlikely population change and reason?
1. if fox numbers increase, owls may decrease in number because there is less food for them
2. if fox numbers increase, weasels may decrease in number because there is less food for them
3. if insect eating bird numbers decrease, mice numbers could decrease because there is less food for them
4. if insect eating bird numbers decrease, mice numbers could decrease because there is less choice of food for owls
[8d-46]
Which of the following is an unlikely population change and reason?
1. if fox numbers increase, owls may decrease in number because there is less food for them
2. if fox numbers increase, weasels may decrease in number because there is less food for them
3. if insect eating bird numbers decrease, mice numbers could increase because there is more food for them
4. if insect eating bird numbers decrease, mice numbers could increase because there is more choice of food for owls
[8d-47]
Which of the following is an unlikely population change and reason?
1. if mice numbers increase, beetle and woodlice numbers may increase as more would be born to replace those eaten
2. if mice numbers increase, insect eating bird numbers may decrease because less food is available
3. if mice numbers decrease due to disease, insect eating bird numbers may increase because more food is available
4. if mice numbers decrease due to disease, insect eating bird numbers may decrease because owls have less choice of food
[8d-48]
Which of the following is an unlikely population change and reason?
1. if mice numbers increase, beetle and woodlice numbers may decrease as more would be eaten
2. if mice numbers increase, insect eating bird numbers may increase because more food is available
3. if mice numbers decrease due to disease, insect eating bird numbers may increase because more food is available
4. if mice numbers decrease due to disease, insect eating bird numbers may decrease because owls have less choice of food
[8d-49]
Which of the following is an unlikely population change and reason?
1. if mice numbers increase, beetle and woodlice numbers may decrease as more would be eaten
2. if mice numbers increase, insect eating bird numbers may decrease because less food is available
3. if mice numbers decrease due to disease, insect eating bird numbers may decrease because less food is available
4. if mice numbers decrease due to disease, insect eating bird numbers may decrease because owls have less choice of food
[8d-50]
Which of the following is an unlikely population change and reason?
1. if mice numbers increase, beetle and woodlice numbers may decrease as more would be eaten
2. if mice numbers increase, insect eating bird numbers may decrease because less food is available
3. if mice numbers decrease due to disease, insect eating bird numbers may increase because more food is available
4. if mice numbers decrease due to disease, insect eating bird numbers may increase because owls have more choice of food
[8d-51]
Which of the following is both herbivore and prey?
1. tadpole
2. perch
3. algae
4. pike
[8d-52]
Which of the following is both carnivore predator and prey?
1. tadpole
2. perch
3. algae
4. pike
[8d-53]
Which of the following is a producer, not a consumer?
1. tadpole
2. perch
3. algae
4. pike
[8d-54]
Which of the following is a predator only?
1. tadpole
2. perch
3. algae
4. pike
[8d-55]
Which of the following is both herbivore and prey?
1. insects
2. frog
3. pondweed
4. otter
[8d-56]
Which of the following is both carnivore predator and prey?
1. insects
2. frog
3. pondweed
4. otter
[8d-57]
Which of the following is a producer, not a consumer?
1. insects
2. frog
3. pondweed
4. otter
[8d-58]
Which of the following is a predator only?
1. insects
2. frog
3. pondweed
4. otter
[8d-59]
Which of the following is an unlikely population change and reason, if the number of perch decreases due to disease?
1. insect numbers may increase because less are eaten and frog numbers may decrease because there is less food available
2. frog numbers may fall because the otter, pike and heron have less choice of food
3. stickleback numbers may increase because less are eaten but insect numbers may fall because more are eaten
4. otter numbers may decrease due to less food available but more frogs may then survive
[8d-60]
Which of the following is an unlikely population change and reason, if the number of perch decreases due to disease?
1. insect numbers may increase because less are eaten and frog numbers may also increase because there is more food available
2. frog numbers may fall because the otter, pike and heron have more choice of food
3. stickleback numbers may increase because less are eaten but insect numbers may fall because more are eaten
4. otter numbers may decrease due to less food available but more frogs may then survive
[8d-61]
Which of the following is an unlikely population change and reason, if the number of perch decreases due to disease?
1. insect numbers may increase because less are eaten and frog numbers may also increase because there is more food available
2. frog numbers may fall because the otter, pike and heron have less choice of food
3. stickleback numbers may decrease because more are eaten by other fish but insect numbers may rise because less are eaten
4. otter numbers may decrease due to less food available but more frogs may then survive
[8d-62]
Which of the following is an unlikely population change and reason, if the number of perch decreases due to disease?
1. insect numbers may increase because less are eaten and frog numbers may also increase because there is more food available
2. frog numbers may fall because the otter, pike and heron have less choice of food
3. stickleback numbers may increase because less are eaten but insect numbers may fall because more are eaten
4. otter numbers may increase due to more frogs surviving
[8d-63]
Which of the following is a carnivore?
1. thrush
2. blue-tit
3. snail
4. fruit bush
[8d-64]
Which of the following is an omnivore?
1. thrush
2. blue-tit
3. snail
4. fruit bush
[8d-65]
Which of the following is a herbivore?
1. thrush
2. blue-tit
3. snail
4. fruit bush
[8d-66]
Which of the following is a producer?
1. thrush
2. blue-tit
3. snail
4. fruit bush
[8d-67]
Which of the following phrases matches the word prey?
1. caught by other animals for food
2. catches other animals for food
3. does not make its own food
4. usually only eats other animals for food
5. eats plants and animals for food
6. makes its own food
7. usually only eats plants for food
[8d-68]
Which of the following phrases matches the word predator?
1. caught by other animals for food
2. catches other animals for food
3. does not make its own food
4. usually only eats other animals for food
5. eats plants and animals for food
6. makes its own food
7. usually only eats plants for food
[8d-69]
Which of the following phrases matches the word consumer?
1. caught by other animals for food
2. catches other animals for food
3. does not make its own food
4. usually only eats other animals for food
5. eats plants and animals for food
6. makes its own food
7. usually only eats plants for food
[8d-70]
Which of the following phrases matches the word carnivore?
1. caught by other animals for food
2. catches other animals for food
3. does not make its own food
4. usually only eats other animals for food
5. eats plants and animals for food
6. makes its own food
7. usually only eats plants for food
[8d-71]
Which of the following phrases matches the word omnivore?
1. caught by other animals for food
2. catches other animals for food
3. does not make its own food
4. usually only eats other animals for food
5. ats plants and animals for food
6. makes its own food
7. usually only eats plants for food
[8d-72]
Which of the following phrases matches the word producer?
1. caught by other animals for food
2. catches other animals for food
3. does not make its own food
4. usually only eats other animals for food
5. eats plants and animals for food
6. makes its own food
7. usually only eats plants for food
[8d-73]
Which of the following phrases matches the word herbivore?
1. caught by other animals for food
2. catches other animals for food
3. does not make its own food
4. usually only eats other animals for food
5. eats plants and animals for food
6. makes its own food
7. usually only eats plants for food
[8d-74]
The diagram shows a typical prey-predator relationship.
Which of the following is FALSE about the fox-rabbits relationship?
1. the number of foxes can be more than the number of rabbits
2. the fox population number peaks soon after the rabbits reach their maximum population number
3. the fox population begins to fall close to when the rabbit population is at its lowest number
4. the rabbit population falls because more foxes survive to eat even more rabbits
5. the rabbit is the prey and the fox is the predator
[8d-75]
The diagram shows a typical prey-predator relationship.
Which of the following is FALSE about the fox-rabbits relationship?
1. the number of foxes is always less than the number of rabbits
2. the fox population number peaks at the same time the rabbits reach their maximum population number
3. the fox population begins to fall close to when the rabbit population is at its lowest number
4. the rabbit population falls because more foxes survive to eat even more rabbits
5. the rabbit is the prey and the fox is the predator
[8d-76]
The diagram shows a typical prey-predator relationship.
Which of the following is FALSE about the fox-rabbits relationship?
1. the number of foxes is always less than the number of rabbits
2. the fox population number peaks soon after the rabbits reach their maximum population number
3. the fox population begins to fall close to when the rabbit population is at its highest
4. the rabbit population falls because more foxes survive to eat even more rabbits
5. the rabbit is the prey and the fox is the predator
[8d-77]
The diagram shows a typical prey-predator relationship.
Which of the following is FALSE about the fox-rabbits relationship?
1. the number of foxes is always less than the number of rabbits
2. the fox population number peaks soon after the rabbits reach their maximum population number
3. the fox population begins to fall close to when the rabbit population is at its lowest number
4. the rabbit population falls because there is not enough grass to support them
5. the rabbit is the prey and the fox is the predator
[8d-78]
The diagram shows a typical prey-predator relationship.
Which of the following is FALSE about the fox-rabbits relationship?
1. the number of foxes is always less than the number of rabbits
2. the fox population number peaks soon after the rabbits reach their maximum population number
3. the fox population begins to fall close to when the rabbit population is at its lowest number
4. the rabbit population falls because more foxes survive to eat even more rabbits
5. the rabbit is the predator and the fox is the prey

KS3 science biology practice exam questions KS4 science GCSE/IGCSE biology courses AQA Edexcel OCR 21st Century OCR Gateway KS3 sciences for high schools secondary schools colleges private KS3 biology tuition revision courses US K12 science

KS3 Science biology Quiz on "Food, digestion, respiration, microbes, diseases and ecological relationships" (based on QCA 8A to 8D)

src="http://pagead2.googlesyndication.com/pagead/show_ads.js"><br /> src="http://pagead2.googlesyndication.com/pagead/show_ads.js"><br /> CLICK [?] read feedback. EMAIL query?comment AND quote Q database number [8a/b/c/d-xx] © Doc Brown

CLICK [?] read feedback. EMAIL query?comment AND quote Q database number [8a/b/c/d-xx] © Doc Brown