Question

The movement of ions against the concentration gradient will be:

• A. Active transport
• B. Osmosis
• C. Diffusion
• D. All of these

Answer 1

The correct option is A Active transport

Active transport is the movement of molecules across a cell membrane in the direction against their concentration gradient using energy.

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration.

Osmosis is the movement of a solvent or water across a semipermeable membrane toward a higher concentration of solute.