NEET BIOLOGY

PLANT PHYSIOLOGY

TRANSPORT IN PLANT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Wind appeared to increase the rate of transpiration in most plants tested. This is most likely due to the fact that:
A
Humidity was increased
B
Evaporation was increased
C
Stomata were forced to close
D
all of these
Explanation: 

Detailed explanation-1: -As the wind blows faster, the water released by transpiration is carried away faster. So, rate of transpiration increases with velocity of wind speed.

Detailed explanation-2: -Plants transpire more rapidly in the light than in the dark. This is largely because light stimulates the opening of the stomata (a mechanism). Light also speeds up transpiration by warming the leaf. Plants transpire more rapidly at higher temperatures because water evaporates more rapidly as the temperature rises.

Detailed explanation-3: -The rise in temperature causes an increase in the evaporation of water from the surface of leaves. This results in an increased demand for water by the plants, leading to an increased transpiration rate. The optimum temperature for plants in the temperate climate lies between 20-30 degree Celsius.

There is 1 question to complete.