Answered

What is the characteristic of a cell membrane that controls which substances can enter and exit the cell?

A.) osmosis

B.) selective permeability

C.) diffusion

D.) concentration gradient

Verified Answer :

B.) selectively permiable

Answer: B.) selective permeability

Explanation:

The property or characteristic of cellular membrane to allow certain substances to pass through the cell is known as selective permeability. The movement of molecules and ions across the cell can be active or passive.

Osmosis is said to occur when molecules of solvent move from region of low concentration to region of high concentration through semi-permeable membrane.

Diffusion is the passive movement of ions or molecules from a region of higher concentration to a region of lower concentration till there is uniform concentration.

concentration gradient is the change of concentration over distance. Solutes move from higher concentration to lower concentration.

Thus, the characteristic of a cell membrane that controls which substances can enter and exit the cell is B.) selective permeability

Related Questions