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Question

Specific ions are acquired by root hairs against the concentration gradient by ___________.


A

simple diffusion

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B

osmosis

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C

active transport

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D

facilitated diffusion

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Solution

The correct option is C

active transport


Specific ions are acquired by root hairs by the active transport process. In this, the movement of a substances across a cell membrane occurs against it's concentration or electrochemical gradient with the expense of energy.


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