Which of the following statements is most correct regarding the intracellular chemical signals known as "second messengers"?
A) Second messengers usually act to remove nitric oxide NO) from the cell.
B) Cyclic AMP and calcium may be second messengers.
C) Second messengers usually inactivate protein kinase enzymes.
D) Second messengers act through receptors called K- proteins.
Correct Answer:
Verified
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