

MCQOPTIONS
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1. |
A signal cascade induced by adrenaline or thyroxine |
A. | involves the activation of a G protein |
B. | must begin with receipt of the signal molecule by a surface receptor |
C. | all of the above |
D. | results in the activation of a sequence of enzymes needed for the cell effect |
Answer» D. results in the activation of a sequence of enzymes needed for the cell effect | |