NEET Solved Paper 2019 Question 18
Question: Grass leaves curl inward during very dry weather. Select the most appropriate reason from the following: [NEET 5-5-2019]
Options:
A) Shrinkage of air spaces in spongy mesophyll
B) Tyloses in vessels
C) Closure of stomata
D) Flaccidity of bulliform cells
Show Answer
Answer:
Correct Answer: D
Solution:
- Bulliform cells are large, bubble-shaped epidermal cells that occur in groups on the upper surface of the leaves of many grasses. During dry conditions, these cells lose water and become flaccid, causing the leaf to curl inward to reduce water loss.
BETA
