After completing a long-distance run, an athlete consumes a carbohydrate-rich drink. The resulting increase in insulin will most directly promote which process in skeletal muscle?
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Answer: C (Uptake of glucose for glycogen synthesis)
Insulin stimulates GLUT4-mediated glucose uptake in skeletal muscle and promotes the storage of glucose as glycogen. Skeletal muscle does not release glucose into the bloodstream, and ketone body synthesis occurs primarily in the liver during low-insulin states. Glycogen breakdown is favored during exercise rather than by the increase in insulin that follows carbohydrate consumption.