Hormones often cause a cell to elicit multiple responses; this is because ___________.
A) the protein kinases are rapidly metabolized into functional amino acids
B) there are thousands of receptors on the cell membrane
C) the receptors bind to several hormones at the same time
D) during protein kinase activation, enzymes phosphorylate many other enzymes

Question

Quizplus · Accepted Answer

During protein kinase activation, enzymes phosphorylate many other enzymes, resulting in a cascade of events that can lead to multiple responses within the cell. This is known as signal amplification, and it allows for a small amount of hormone to have a large effect on the cell. Option A is incorrect because protein kinases do not get metabolized; they remain functional as enzymes. Option B is incorrect because the number of receptors on the cell membrane does not necessarily dictate the number of responses elicited by a hormone. Option C is incorrect because receptors typically bind to a specific hormone, and binding to multiple hormones simultaneously is rare.

Hormones Often Cause a Cell to Elicit Multiple Responses; This