Physiology MCQ 10

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Transmembrane Signalling, Intracellular Messengers and Implications for Drug Development (Biological Council Symposia on Drug Action)The best understood intracellular messenger is cyclic AMP (cAMP). Which of the following statement(s) concerning this intracellular messenger is/are correct?
a. Intracellular cyclic AMP is constantly degraded by a specific enzyme, cAMP phosphodiesterase
b. Most of the actions of cAMP are mediated by activation of protein kinase A
c. Intracellular levels of cAMP are relatively stable and change solely in response to activation of adenylate cyclase
d. cAMP is the only cyclic nucleotide active as an intracellular messenger


Category: Physiology MCQs

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