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Stomatal movement is not affected by...

Stomatal movement is not affected by

A

`O_(2)` concentration

B

Light

C

Temperature

D

`CO_(2)` concentration

Text Solution

Verified by Experts

The correct Answer is:
A
Stomatal movement is not affected by `O_(2)` concentration . Stomata are tiny pores complexes found in the epidermis of leaves and other soft aerial parts . They are meant for the gaseous exchange but are also the main source of transpiration. Stomatal movements are affected by many factors like light , temperature and `CO_(2)` concentration . In the majority of plants , the stomata are open in light and close in darkness . Normally high temperature above `30^(@)C` reduces stomatal opening in many species . Low `CO_(2)` concentration usually induces opening of stomata while high `CO_(2)` concentration closes the same .
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