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GCSE Combined Science · key term
A hormone released by the pancreas that lowers blood glucose concentration by causing glucose uptake by cells and storage of excess glucose as glycogen.
Used by AQA and Edexcel
Specification 4.5.3.2 · Paper 2
Revise: Blood Glucose ControlWhen the concentration is too high, it releases the hormone insulin into the blood. The blood carries insulin to the cells on which it acts.
Paper 1, Paper 2
A hormone released by the pancreas that lowers blood glucose concentration by promoting glucose uptake and its conversion into glycogen.
Revise: Homeostasis and Blood GlucoseThe pancreas responds by releasing insulin. Insulin promotes the uptake of glucose from the blood into body cells, where glucose can be used in respiration. It also stimulates liver and muscle cells to convert excess glucose into glycogen, an insoluble storage carbohydrate.
For insulin control, link the pancreas, insulin release, glucose uptake by cells and conversion of excess glucose to glycogen in liver and muscle cells.
Distinguish the two diabetes mechanisms: insufficient insulin production in Type 1; reduced cell response to insulin in Type 2.
When describing a graph, quote values with units and compare the curves at the same time. When explaining it, connect the pattern to insulin's action.
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