IB Biology SL D3.3.3 Blood Glucose Regulation Questions

Trace how pancreatic beta cells secrete insulin when blood glucose rises and alpha cells secrete glucagon when it falls, changing liver and muscle stores.

Exam points

Describe beta-cell insulin secretion when blood glucose rises and alpha-cell glucagon secretion when it falls.
Explain how insulin promotes glucose uptake or storage, while glucagon stimulates glycogen breakdown in the liver and muscle to raise blood glucose.

[Maximum number: 2]

Outline the role of glucagon in homeostasis of glucose.

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IB Biology SL D3.3.3 Blood Glucose Regulation Questions question 1