AP BIOLOGY

LABORATORY REVIEW

TRANSPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What increases transpiration in plants the most?
A
wind
B
heat
C
Light
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: -With the presence of wind, air movement decreases the humidity which blows the water molecules away from the plant which increases the transpiration rate.

Detailed explanation-3: -Abstract. A widespread perception is that, with increasing wind speed, transpiration from plant leaves increases. However, evidence suggests that increasing wind speed enhances carbon dioxide (CO2 ) uptake while reducing transpiration because of more efficient convective cooling (under high solar radiation loads).

Detailed explanation-4: -Temperature plays a major role in the rate of transpiration. As the temperature increases, transpiration will increase due to a higher concentration in sunlight and warm air.

There is 1 question to complete.