Once a structure is fully grown and mature, it will probably
A) up-regulate its receptors for growth hormone, as it no longer receives as much of the ligand.
B) up-regulate its receptors for growth hormone, as it no longer needs to continue to grow at a fast rate.
C) down-regulate its receptors for growth hormone, as it no longer receives as much of the ligand.
D) down-regulate its receptors for growth hormone, as it no longer needs to continue to grow at a fast rate.

Question

Quizplus · Accepted Answer

Once a structure is fully grown and mature, it will likely down-regulate its receptors for growth hormone because it no longer needs to grow at a fast rate. This is a common regulatory mechanism to prevent unnecessary growth and maintain homeostasis.

Once a Structure Is Fully Grown and Mature, It Will