If adenylyl cyclase were inhibited in animal cells, ____.
A) binding of epinephrine to beta receptors would have no effect on cyclic AMP levels.
B) binding of epinephrine to beta receptors would increase cyclic AMP levels.
C) an increase in mRNA for cyclic AMP would occur.
D) an increase in mRNA for more beta receptors would occur.
E) epinephrine would not be able to bind to beta receptors.

Question

Quizplus · Accepted Answer

Adenylyl cyclase is responsible for converting ATP to cyclic AMP (cAMP) in response to signals like epinephrine binding to beta receptors. If adenylyl cyclase is inhibited, epinephrine binding would not increase cAMP levels, making option A correct.

If Adenylyl Cyclase Were Inhibited in Animal Cells, ____