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GCSE level School BIOLOGY Notes: Control of blood sugar level, insulin, diabetes

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Homeostasis -  control of blood sugar level - insulin and diabetes type 1 and type 2 diabetes - diet, obesity and body-mass index

Doc Brown's biology exam revision study notes


 Sub-index for this section on how your body controls your blood sugar level

(1) Why the need to control the blood sugar level?

(2) The negative feedback mechanism for controlling the concentration of blood glucose

(3) Types 1 and 2 Diabetes - problems with insulin, how to regulate it, measures of obesity

See also homeostasis - water content control - urea - kidney function

homeostasis - thermoregulation and temperature control

Keeping healthy - non-communicable diseases - risk factors


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Homeostasis notes index:

Homeostasis - introduction to how it functions (negative feedback systems explained)

Homeostasis - control of blood sugar level - insulin and diabetes

Homeostasis - osmoregulation, ADH, water control, urea and ion concentrations and kidney function, dialysis

Homeostasis - thermoregulation, control of temperature

Other general HUMAN BIOLOGY revision notes

Introduction to the organisation of cells => tissues => organs => organ systems (e.g. in humans)

Examples of surfaces for the exchange of substances in animal organisms  

See also Enzymes - section on digestion and synthesis 

The human circulatory system - heart, lungs, blood, blood vessels, causes/treatment of cardiovascular disease

The brain - what the different parts do and the dangers if damaged

An introduction to the nervous system including the reflex arc 

Hormone systems - Introduction to the endocrine system - adrenaline & thyroxine hormones 

Hormone systems - menstrual cycle, contraception, fertility treatments s

Respiration - aerobic and anaerobic in plants and animals. 

Keeping healthy - communicable diseases - pathogen infections 

Keeping healthy - non-communicable diseases - risk factors for e.g. cancers  

Keeping healthy - diet and exercise 

Keeping healthy - defence against pathogens, infectious diseases, vaccination, drugs, monoclonal antibodies

See also Culturing microorganisms like bacteria - testing antibiotics/antiseptics 

Food tests for reducing sugars, starch, proteins and lipids 

The eye - structure and function - correction of vision defects 

Optics - lens types (convex, concave, uses), experiments, ray diagrams, correction of eye defects (gcse physics)


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