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Question

Movement of water molecules along their concentration gradient through a selectively permeable membrane is known as _______.


A

Plasmolysis

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B

Osmosis

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C

Hydrolysis

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D

Diffusion

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Solution

The correct option is B

Osmosis


Movement of water molecules along their concentration gradient through a selectively permeable membrane is known as osmosis whereas diffusion is the net passive movement of particles (atoms, ions or molecules) from a region in which they are in higher concentration to regions of lower concentration. Plasmolysis is the processes of contraction of the protoplast of a plant cell as a result of loss of water from the cell. Hydrolysis is the chemical breakdown of a compound due to reaction with water.


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