Question

The shape of guard cells changes due to change in the

विकल्प

• protein composition of cells

• temperature of cells

• amount of water in cells

• position of nucleus in the cells

Answer 1

amount of water in cells

Explanation - 

Excess water makes the guard cell turgid and lack of water makes the guard cell flaccid. When the guard cell is turgid stomata open. When it is flaccid, stomata closed.