Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide
Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using the following options.
(a) Both processes can happen together because the diffusion coefficient of water and CO2 is different
(b) The above processes happen only during night time
(c) One process occurs during day time and the other at night
(d) Both processes cannot happen simultaneously
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Correct option (a) Contraction of outer wall of guard cells
Explanation :
Diffusion of water vapour and CO2 are independent process. Their diffusion depends on the difference in their partial pressure in the atmosphere as well as inside the leaves.
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