The shape of guard cells changes due to change in the

Options

A. protein composition of cells
B. temperature of cells
C. amount of water in cells
D. position of nucleus in the cells

Answer

C

Explanation

The shape of guard cells changes due to amount of water in them. The guard cell swell when water flows into them, causing the stomatal pore to open. Similarly, the pore closes if the guard cells shrink, due to the loss of water in then.