Question

How cell membrane help in maintaining equilibrium while exchanging materials wit environment?

Answer 1

Answer:

Cellular homeostasis involves maintaining a balance of several factors that make a cell healthy. The cell membrane is a lipid bilayer that prevents the passage of water and ions. This allows cells to maintain a higher concentration of sodium ions out the outside of the cell.

Each cell is surrounded by a cell membrane, which is a selectively permeable membrane. So the cell takes necessary substances from the surrounding environment and removes unwanted through a state of equilibrium called homeostasis.

The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells. As the plasma membrane acts as a mechanical barrier, the exchange of material from its surroundings through osmosis or diffusion in a cell won't take place.

Answer 2

The cell membrane is selectively permeable. It allows the exchange of gases and nutrients to take place via diffusion and exchange of water molecules to take place via osmosis.
Diffusion and osmosis are 2 processes that take place without the use of energy and till the time it reaches equilibrium.