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  • 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

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

Answers (1)

Answer: B

Osmosis is the movement of water from a higher concentration to lower concentration when separated by semipermeable membrane like plasma membrane.

Behavior of a cell in hypertonic solution.

Hypertonic solution is a solution whose water concentration is less compared to the solution inside the cell (cytoplasm). Due to osmosis, water moves out of the cell leading to shrinking of cell.

Behavior of cell in hypotonic solution

Hypotonic solution is a solution whose water concentration is high compared to the solution inside the cell (cytoplasm). Due to osmosis, water moves into the cell leading to bulging of cell.

Behavior of cell in Isotonic Solution

Isotonic solution is a solution whose water concentration is same compared to the solution inside the cell (cytoplasm). So, the cell stays stable (No change in shape).

Therefore, option (b) is correct.

Posted by

infoexpert23

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