Plant Growth and DevelopmentHard
Question
Leaves of many grasses are capable of folding and ungolding because they
Options
A.are very thin
B.are isobilateral
C.have specialized buffiform cells
D.have parallel vascular bundles
Solution
Leaves of monocots are characterised as isobilateral (equally green on both the surface), dumb bell-shaped guard cells. The upper epidermis possesses groups of larger sized thin walled vacuolate cells called bulliform or motor cells. Buffiform cells help in rolling of leaves during water stress or drought.
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