Multiple Choice
Which of the following statements about cyclic AMP is false?
A) It can bind to, and thus open, ion channels in some sensory cells.
B) In some circumstances it can bind to a protein kinase in the cytoplasm.
C) The enzyme adenylyl cyclase catalyzes its formation from ATP.
D) It is a second messenger.
E) It has enzymatic activity.
Correct Answer:

Verified
Correct Answer:
Verified
Q41: The signals that bind to receptors on
Q42: Increased synthesis of phosphodiesterase would lead to<br>A)
Q43: Gap junctions<br>A) allow large molecules and ions
Q44: Chemical signal transduction pathways<br>A) use non-specific receptors.<br>B)
Q45: Trace how changes in osmotic pressure in
Q48: In what way do ligand-receptor interactions differ
Q49: If a G protein were unable to
Q50: Which of the following strongly binds to
Q51: Which of the following statements is false?<br>A)
Q219: Signals that diffuse to and affect nearby