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NEET 2018, Biology Q21: Plant Growth Regulators

NEET2018Paper 2018Biology
Q.

Stomatal movement is not affected by

  1. A

    Temperature 

  2. B

    O2 concentration

  3. C

    Light 

  4. D

    CO2 concentration 

Solution

Light, temperature and concentration of CO2 affect opening and closing of stomata while they are not affected by O2 concentration. 

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