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Which of the following occurs as a result of epinephrine binding to its receptors ?

( A ) phophodiesterase is actvated to prolong the effect of cAMP
( B ) cAMP is produced from AMP
( C ) glycogen accumultes
( D ) a phosphatase inhibitor is activated by phosphorylation
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Ans: ( B ) cAMP is produced from AMP
Binding of epinephrine receptors activates adenylyl cyclase producing cyclic AMP from ATP. Cyclic AMP activates a protein kinase thereby phosphorylating myosine light chain kinase.
answered Nov 3, 2016 by suganyadevi.p

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