Question
Biology Question on Transport in Plants
Which one of the following will not directly affect transpiration ?
A
Temperature
B
Light
C
Wind speed
D
Chlorophyll content of leaves
Answer
Chlorophyll content of leaves
Explanation
Solution
External factors affecting the rate of transpiration are: atmospheric humidity, temperature, light, wind velocity, atmospheric pressure and available soil water. Some internal factors also affect rate of transpiration e.g., leaf area, leaf structure and age of plants. Chlorophyll content of leaves does not directly affect rate of transpiration.