Application of an inhibitor to the phosphodiesterase enzymes will result in A) shortened response initiated by receptors coupled to G_S B) prolonged response initiated by nitric oxide C) prolonged response initiated by insulin D) no change in any of these responses

Question

Quizplus · Accepted Answer

Inhibiting phosphodiesterase enzymes would result in a prolonged response initiated by nitric oxide, as these enzymes are responsible for breaking down cyclic nucleotides, such as cyclic guanosine monophosphate (cGMP), which are important second messengers in the nitric oxide signaling pathway. By inhibiting their breakdown, the levels of cGMP would remain elevated, leading to a prolonged response. There would be no impact on responses initiated by receptors coupled to G_S or insulin, as these signaling pathways do not rely on cGMP or the phosphodiesterase enzymes.

Application of an Inhibitor to the Phosphodiesterase Enzymes Will Result