Which of the Following Is the Last Step in the Sequence

question 3

Multiple Choice

Which of the following is the last step in the sequence of events happening when cyclic AMP acts as a second messenger?

• A) G protein activates adenylate cyclase
• B) cAMP activates protein kinases
• C) Adenylate cyclase produces cAMP
• D) G protein is activated by the binding of a hormone to the receptor
• E) Enzymes are activated or deactivated by the action of protein kinases

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