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When the conditions are dry, a grass leaf curls inward to minimize water loss due to the pressure of

a)

Thick cuticle

b)

Large xylem cavities

c)

Parallel venation

d)

Bulliform cells


Question ID - 3803 | Toppr Answer

When the conditions are dry, a grass leaf curls inward to minimize water loss due to the pressure of

a)

Thick cuticle

b)

Large xylem cavities

c)

Parallel venation

d)

Bulliform cells

1 Answer - 5876 Votes

3537

Answer Key : (d) -

(d)

The upper epidermises of monocots have large, thin walled and empty bulliform cells or motor cells containing water. These cells are mainly concerned with rolling and unrolling of leaf. The epidermis is cuticularized.



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