What is the definition of a prohormone?
A)Hormones that bind to endocrine glands and stimulate the secretion of a second hormone
B)Hormones that bind to endocrine glands and inhibit the secretion of a second hormone
C)A longer protein or peptide that is cleaved into shorter ones,at least one of which is a peptide or protein hormone
D)Hormones that stimulate the expression of receptors for a second hormone,promoting their action
E)Steroid hormones that are inactivated by having hydroxyl groups removed from their structure

Question

Quizplus · Accepted Answer

A prohormone is a longer protein or peptide that is cleaved into shorter ones, at least one of which is a peptide or protein hormone. Prohormones require enzymatic cleavage to become active hormones.

Answer: E
 This definition does not accurately describe a prohormone. Steroid hormones that are inactivated by having hydroxyl groups removed from their structure are not prohormones.

What Is the Definition of a Prohormone