Question
Biology Question on osmosis
Stomatal mechanism operates in response to
A
temperature
B
light
C
soil moisture
D
atmospheric humidity
Answer
light
Explanation
Solution
Stomata are minute specialised pores generallypresent on leaf epidermis. Light is very important as most of the stomata open during day time.opening of stomata occurs in red ligh(660 nm) followed by blue light (445 nm) and nooccurs in green light.