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Question

The movement of ions against the concentration gradient will be:

A
Active transport
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B
Osmosis
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C
Diffusion
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D
All of these
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Solution

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.

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