KS3 Science biology Quiz on "MICROBES and DISEASES" (based on QCA 8C)

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

KS3 Science biology Quiz on "MICROBES and DISEASES" (based on QCA 8C)

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