GHow would an inhibitor of cAMP phosphodiesterase affect glucose mobilization in muscle? It would increase cAMP levels, which would inhibit glucose mobilization. It would maintain high cAMP levels and elevate glucose mobilization. It would increase AMP concentration, thereby increasing glucose mobilization. It would reduce cAMP levels and inhibit glucose mobilization.

The correct answer is the last statement.

Explanation:

The enzyme cAMP phosphodiesterase works as a catalyst and helps in the generation of cAMP from ATP. With the activation of cAMP, the protein kinase A also gets activated. This protein kinase A further perform phosphorylation of glycogen phosphorylase, which stimulates the enzyme glycogen phosphorylase that further dissociates the molecule of glycogen into glucose-6-phosphate.  

This formed glucose gets mediated to different parts of the body via the bloodstream. However, in the presence of cAMP phosphodiesterase inhibitor, less production of cAMP takes place, which prevents the dissociation of glycogen into molecules of glucose that eventually prevents the mobilization of glucose within the body.  

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