Which one of the following processes accounts for the accumulation of some ions inside the vacuole of the cell at a higher concentration than in the surrounding medium?

Diffusion

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Donnan equilibrium

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Energy dependant uptake

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Osmosis

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Solution

The correct option is A Diffusion
Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration.

It accounts for the accumulation of some ions inside the vacuole of the cell at a higher concentration than in the surrounding medium.

Hence, option A is correct.

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