The cellular organelle most directly involved in maintaining homeostasis is the

a. plasma membrane
b. cell wall
c. chloroplast
d. mitochondria

A

Explanation:

The plasma membrane is significant in regulating the movement of molecules in and out of the cell through processes such as active transport, diffusion, and osmosis. An example is that when the cell becomes dehydrated, water is taken in by osmosis until normal levels are reached. Whenever byproducts of biochemical reactions accumulate in the cell, they are taken out the cell through active transport.