HMS, BM EQ-Bank 909 MC

A marathon runner consumes a carbohydrate-rich meal 2 hours before a race. After digestion, which hormone from the endocrine system would most likely be suppressed during the runner's activity to ensure efficient energy supply to muscles?

Insulin
Glucagon
Adrenaline
Cortisol

Show Answers Only

\(A\)

Show Worked Solution

A is correct: Insulin is suppressed during exercise to prevent glucose storage and maintain blood glucose availability.

Other Options:

B is incorrect: Glucagon increases during exercise to raise blood glucose levels.
C is incorrect: Adrenaline increases to enhance cardiac function and muscle blood flow.
D is incorrect: Cortisol increases to aid metabolism of nutrients for energy.