Biology for IGCSE & O level - Coordination And Response (Section 2 - No. 45)
What is the role of glucagon in the regulation of blood sugar levels?
It increases blood sugar levels by causing the liver to release stored glucose.
It decreases blood sugar levels by allowing glucose to enter cells.
It breaks down the red blood cells to produce energy.
It has no direct effect on blood sugar levels.
Explanation
Glucagon raises blood sugar by prompting the liver to release glucose.
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