How do diffusion and osmosis relate to the function of a cell membrane?

1 Answer
Sep 2, 2015

Answer:

The selective permeability property of the cell membrane regulates the passage of important molecules vital for many life processes in living organisms.

Explanation:

The cell membrane is also called selectively permeable membrane for the sole reason being it is selective in nature.

It allows only selected necessary molecules which are vital for certain life processes to pass through it.
Similarly in diffusion and osmosis only certain molecules pass through the cell membrane.

Diffusion helps passage of vital molecules like water , carbon di oxide and oxygen.
Whereas in osmosis water is transported from a solution of low concentration to higher concentration.
These processes are very vital for many life processes.

  • In animals, osmosis help transport nutrients and release metabolic waste products.
  • In plants, osmosis aids the absorption of water from the soil and helps transport it right up to the leaves of the plant.

The selective permeability property of the cell membrane regulates the passage of important molecules vital for many life processes in living organisms, and if it were not for this characteristic any and every molecule would pass through the cell membrane.