Answer and explanation

Correct answer: C. It causes the liver to convert glycogen into glucose

  1. Step 1: When blood glucose is low the pancreas secretes glucagon.
  2. Step 2: Glucagon acts on the liver, which releases glucose into the blood.
Answer
It causes the liver to convert glycogen into glucose.
Why not the others: It converts glucose into glycogen in the liver: this is insulin's effect. It makes cells burn less glucose during exercise: this does not raise blood glucose. It makes the kidneys remove glucose: this is not how glucagon works.

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What does glucagon do? | National 5 (Scotland)