AQA · Biology · 8461
GCSE Biology: Control of blood glucose concentration
Homeostasis and response · AQA GCSE Biology (8461), specification point 4.5.3.2. Cards are generated from the exam board's own specification for "Control of blood glucose concentration", and every card links back to the page it came from. Specification © AQA — used with attribution.
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Which organ monitors and controls blood glucose concentration?
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The pancreas.
Which hormone does the pancreas release when blood glucose is too high?
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Insulin.
What effect does insulin have on glucose in the blood?
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It causes glucose to move from the blood into the cells, lowering blood glucose concentration.
In liver and muscle cells, excess glucose is converted to ? for storage.
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glycogen
What causes Type 1 diabetes?
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The pancreas fails to produce sufficient insulin.
How is Type 1 diabetes normally treated?
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With insulin injections.
What goes wrong in the body in Type 2 diabetes?
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Body cells no longer respond to the insulin produced by the pancreas.
Name a common treatment for Type 2 diabetes.
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A carbohydrate-controlled diet (or an exercise regime).
? is a major risk factor for Type 2 diabetes.
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Obesity
Which hormone does the pancreas release when blood glucose is too low?
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Glucagon (Higher Tier).
What effect does glucagon have on glycogen?
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It causes glycogen to be converted into glucose, which is released into the blood.
What type of control cycle do insulin and glucagon form to regulate blood glucose?
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A negative feedback cycle: each hormone reverses a change away from the normal level.
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