Q. Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following :
A) Closure of stomata
B) Flaccidity of bulliform cells
C) Shrinkage of air spaces in spongy mesophyll
D) Tyloses in vessels
Explanation
[Solution] In water stress, bulliform cells become flaccid and the leaf rolls inwards to reduce water loss. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.