NEET BIOLOGY

PLANT PHYSIOLOGY

TRANSPORT IN PLANT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
More water is lost from which part of the plant?
A
upper surface of leaf
B
flowers
C
stem
D
lower surface of leaf
Explanation: 

Detailed explanation-1: -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.

Detailed explanation-2: -Most of the water a plant loses is lost due to a natural process called transpiration. Plants have little pores (holes or openings) on the underside of their leaves, called stomata. Plants will absorb water through their roots and release water as vapor into the air through these stomata.

Detailed explanation-3: -Most of the water lost by a plant occurs through the tiny pores in the leaf called stomata. These pores open during the day to allow gaseous exchange for photosynthesis. In doing so they also allow water to be lost by evaporation from the cells of the leaf.

There is 1 question to complete.