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  • Leaves of many grasses are capable of folding and unfolding because they  Option: 1  are very thin  

Leaves of many grasses are capable of folding and unfolding because they

 

Option: 1

 are very thin

 


Option: 2

are isobilateral


Option: 3

have specialized bulliform cells


Option: 4

have parallel vascular bundles


Answers (1)

best_answer

Leaves of monocots are characterized as isobilateral (equally green on both the surfaces), amphistomatic (stomata on both surfaces), and dumbbell-shaped guard cells.

The upper epidermis possesses groups of larger-sized thin-walled vacuolate cells called bulliform or motor cells. Bulliform cells help in the rolling of leaves during water stress or drought. Hence, the correct answer is option 3.

 

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