Question

mia is running a 5k race. her muscles are using glucose for energy. how does the body maintain blood sugar levels during exercise?
the liver releases stored glucose in response to glucagon.
the pancreas releases insulin, signaling cells to store glucose.
the brain stops monitoring blood sugar levels to focus on exercise.
muscle cells release insulin to increase blood sugar.

Explanation:

During exercise like running a 5K, when muscles use glucose for energy, blood - sugar levels drop. The pancreas releases insulin to store glucose when blood - sugar is high, not to increase it. The brain doesn't stop monitoring blood - sugar during exercise. Muscle cells don't release insulin. When blood - sugar drops during exercise, the liver releases stored glucose in response to glucagon, which helps maintain blood - sugar levels.

Answer:

The liver releases stored glucose in response to glucagon.