When blood glucose rises, the pancreas releases insulin from beta cells, while alpha cells halt glucagon secretion. Insulin promotes glucose uptake by cells and its conversion to glycogen (glycogenesis), thereby lowering blood glucose.
This card describes the negative feedback for high blood glucose: the pancreas detects high levels, beta cells secrete insulin, and alpha cells stop glucagon release. Insulin acts on cells to increase glucose uptake and storage (glycogenesis), lowering blood glucose.
| Front | Negative feedback mechanism for when there is a rise in blood glucose concentration |
|---|---|
| Back | Pancreas detect blood glucose concentration is too high Beta cells secrete insulin Alpha cells stop secreting glucagon Insulin secreted directly into blood Insulin binds to receptors on cells Change of shape of glucose carrier proteins so that they open and let more glucose in Increase the number of glucose transport proteins (Cells have vesicles of carrier proteins ready for glucose) Cells respire more glucose Glycogenesis activated |
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