Question

Stomata of CAM plants
(a) never open
(b) are always open
(c) open during the day and close at night
(d) open during the night and close during the
day

Answer 1

Answer:

D.

Explanation:

open during the night and close during day

Answer 2

Stomata of CAM plants -

(d) open during the night and close during the day

Stomata are found in leaves and they open or close by the movement of specialised surrounding cells, known as guard cells.

The stomata serves function of gaseous exchange and water is also lost through them.

CAM is Crassulacean acid metabolism. It is a pathway for plants adapted to arid or dry conditions. Some examples are cactus, pineapple.

To restrict water loss in water deficienct areas, stomata opens at night and takes in required carbon dioxide. During the day it remains closed.