NEET Solved Paper 2016 Question 76
Question: Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatalopening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using oneof following options:
Options:
A) Both processes cannot happen simultaneously
B) Both processes can happen together because the diffusion coefficient of water and $ CO _2 $ is different
C) The above processes happen only during night time
D) One process occurs during day time, and the other at night
Show Answer
Answer:
Correct Answer: B
Solution:
- The stomatal openings in plant leaves allow for the exchange of gases. During photosynthesis, carbon dioxide ($CO_2$) diffuses into the leaf through the stomata, while water vapor exits the leaf through the same openings. These processes can occur simultaneously because the diffusion coefficients of water vapor and carbon dioxide are different, allowing both gases to move in and out of the leaf at the same time without interfering with each other.
BETA
