LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

PLANT PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Terrestrial plants have stomata on the surface of their leaves. A single stoma is surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma. Which of the following best explains how the structure of the leaf is used in processes that occur in the plant?
A
Water enters the plant through the surface of the leaf for transpiration.
B
Gases for photosynthesis are exchanged through the surface of the leaf.
C
Energy for cellular reproduction is absorbed through the surface of the leaf.
D
Carbon dioxide enters the plant through the surface of the leaf for cellular respiration.
Explanation: 

Detailed explanation-1: -Stoma is the singular and stomata is the plural form.

Detailed explanation-2: -Stomata are more numerous on the lower side of the leaf to prevent transpiration. Transpiration is the loss of water through stomata, so, more stomata are found on the lower surface to prevent excessive loss of water.

There is 1 question to complete.