Question

A cell will swell up if

A

The concentration of water molecules in the cell is higher than the concentration of water molecules in surrounding medium.

B

The concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell.

C

The concentration of water molecules is same in the cell and in the surrounding medium.

D

Concentration of water molecules does not matter.

Hard
Solution
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Correct option is B)

Correct option: B
Explanation:
  • Endosmois is the process by which water from the surroundings gets into the cells as the water content outside the cell is higher.
  • As a result, the cell swells up.
  • Exosmois is the process in which water molecules move out from the cell as its content is higher inside the cell.
  • As a result, the cell shrinks.
  • And if the water content on either side remains the same there is no change in the shape of the cell.
  • The concentration of water molecules determines the movement of water.
Hence, a cell will swell up if "the concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell".

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