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MCAT Question A Day - 7/25/14 - Answer!

Most of the glycogen in the human body is stored in the liver and the skeletal muscles. Which of the following hormones inhibits glycogenolysis?

A.  Cortisol
B.  Insulin
C.  Glucagon
D.  Aldosterone

B is correct. Insulin decreases blood sugar levels in several ways. One of the ways is by inhibiting glycogenolysis.

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