During the night, solutes move out of the guard cells, resulting in outward movement of water from guard cells to ..... cells.

RESPIRATION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

During the night, solutes move out of the guard cells, resulting in outward movement of water from guard cells to ____ cells.

A	Guard
B	Epidermal
C	Lenticels
D	None of these

Explanation:

Detailed explanation-1: -So, the correct answer is ‘Osmosis’.

Detailed explanation-2: -The turgor pressure of guard cells is controlled by movements of large quantities of ions and sugars into and out of the guard cells. When guard cells take up these solutes, the water potential inside the cells decreases, causing osmotic water flow into the guard cells.

Detailed explanation-3: -When water exits from the guard cells, they become flaccid. This results in closing of stomata.

Detailed explanation-4: -Most plants regulate the size of stomata with guard cells. Each stoma is surrounded by a pair of sausage-shaped guard cells. In bright light the guard cells take in water by osmosis and become plump and turgid . In low light the guard cells lose water and become flaccid, causing the stomata to close.

There is 1 question to complete.

DENDROLOGY

TREE PHYSIOLOGY

RESPIRATION