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.

Question

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 CO 2 is different (B) The above processes happen only during night time (C) One process occurs during daytime and the other at night (D) Both processes cannot happen simultaneously

Tardigrade Admin · Accepted Answer

The reason given in option (a) is correct.
During photosynthesis, water vapour comes out through a stomatal opening of the leaf of a plant. And through the same opening

C O_{2}

diffuses into the leaf. This simultaneous entry and exit of

C O_{2}

and water vapour, respectively, occurs due to a difference in the diffusion coefficient of

C O_{2}

and water vapour.

Q. 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.

Both processes can happen together because the diffusion coefficient of water and $C O_{2}$ is different

The above processes happen only during night time

One process occurs during daytime and the other at night

Both processes cannot happen simultaneously

Q. 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.

Both processes can happen together because the diffusion coefficient of water and CO2​ is different

The above processes happen only during night time

One process occurs during daytime and the other at night

Both processes cannot happen simultaneously

Both processes can happen together because the diffusion coefficient of water and $C O_{2}$ is different