Question

if carbon dioxide concentration suddenly increase around leaf it results in ______
a- gradual opening of stomata
b- sudden opening of stomata
c- increase in transpiration
d- decrease in transpiration​

Answer 1

Answer:

Stomata are tiny pores present on the surface of the leaves. They allow the exchange of gases between plants and atmosphere. They allow carbon dioxide to enter and oxygen to exit. There are three environmental factors that affect opening and closing of a plant stomata. These are light, water and carbon dioxide. A sudden increase in carbon dioxide concentration around a leaf will cause closure of stomata so that excess carbon dioxide does not enter the cell. This will decrease in rate of transpiration.

Thus, the correct answer is option D.