[Campbell Biology P.125] Insulin, a hormonal protein, plays a crucial role in maintaining gl... | Practice Question

Insulin, a hormonal protein, plays a crucial role in maintaining glucose homeostasis. Based on the provided diagram, what is the direct effect of insulin secretion when blood sugar is high?

  • A: It causes tissues to release more glucose into the blood.
  • B: It signals other nerve cells to release more signaling molecules.
  • C: It stimulates tissues to take up glucose from the blood.
  • D: It inactivates and helps destroy viruses and bacteria.
  • E: It acts as a structural component in connective tissue.

Explanation

The diagram for hormonal proteins shows that when blood sugar is high, insulin is secreted, which then leads to normal blood sugar levels by causing tissues to take up glucose.