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Second Messenger: cAMP

View the animation below, then complete the quiz to test your knowledge of the concept.






1The second messenger cAMP is synthesized by the enzyme
A)adenylyl cyclase.
B)cAMP phoshodiesterase.
C)ATPase.
D)ligase.
E)phosphorylase.



2The binding of epinephrine to its receptor activates a(n)
A)A protein.
B)D protein.
C)G protein.
D)K protein.
E)M protein.



3The enzyme α-kinase adds ________ to proteins.
A)acetates
B)benzoats
C)carbonates
D)phosphates
E)hydroxyls



4Epinephrine has to cross the cell membrane to bind to its receptor in the cytoplasm.
A)True
B)False



5The second messenger cAMP is made from ADP.
A)True
B)False







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