Structural Organisation In Animals Question 184
Question: Grass leaves can fold and unfold because they
Options:
A) Have bulliform cells
B) Are long and thin
C) Have parallel venation
D) Are isobilateral
Show Answer
Answer:
Correct Answer: A
Solution:
Some of the cells in the leaves of grasses are comparatively very large, called bulliform or motor cells.
It is hygroscopic in nature.
e.g., Ammophila.
They are thin-walled and contain big central vacuoles filled with water.
They play an important role in the folding and unfolding of leaves.
BETA
