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Biology MCQs

Early work on signal transduction and glycogen metabolism by sutherland indicated that __________.

The signal molecule combined directly with a cytosolic enzyme to form an active quaternary structure

The signal molecule worked equally well with intact or disrupted cells

The signal molecule did not interact directly with the cytosolic enzyme, but required an intact plasma membrane before the enzyme could be activated

The cell-signaling pathway involves two separate steps: transduction and response

Epinephrine is involved in response to stress

Answer

Correct Answer: The signal molecule did not interact directly with the cytosolic enzyme, but required an intact plasma membrane before the enzyme could be activated

Explanation:

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