Question

The movement of free atoms from higher concentration to lower concentration is called:

• A. Osmosis
• B. Diffusion
• C. Endosmosis
• D. Exosmosis

Answer 1

Answer: (B)

The correct option is B Diffusion
Osmosis is the movement of solvent through a semi-permeable membrane to a region of higher solute concentration.

Diffusion is a process of movement of ions or molecules from a higher concentration to an area of lower concentration.

Endosmosis is the process of movement of solvent from outside to the inside of the cell.
While, exosmosis is the process of movement of solvent from inside to the outside of the cell.
Thus, the correct answer is option (B).