HORTICULTURE

HORTICULTURE SCIENCE

ULTRA STRUCTURE OF PLANT CELLS AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which part of the plant is an opening that allows for gas exchange?
A
Stomata
B
Guard Cell
C
Palisade
D
Xylem
E
Phloem
Explanation: 

Detailed explanation-1: -Stomata are pores in the leaf that allow gas exchange. Each stoma is guarded by guard cells. When these guard cells open during photosynthesis, carbon dioxide enters the leaves and water vapour and oxygen goes out of the leaves. Stomata are present usually on the underside of the leaves.

Detailed explanation-2: -The leaves exchange gases through pores called Stomata. Stomata are the small openings present on the inner surface of the leaves. Stomata can be opened and closed. During the night when no photosynthesis takes place, the plant breathes in oxygen and breathe out carbon dioxide through stomata.

There is 1 question to complete.