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 | |