A signal cascade induced by adrenaline or thyroxine

Question: A signal cascade induced by adrenaline or thyroxine
[A].

must begin with receipt of the signal molecule by a surface receptor

[B].

involves the activation of a G protein

[C].

results in the activation of a sequence of enzymes needed for the cell effect

[D].

all of the above

Answer: Option D

Explanation:

No answer description available for this question.