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STD 11 - 6. Anatomy flowering plants — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 6. Anatomy flowering plants1 Mark
MCQ
Bulliform cells are responsible for
  • A
    Protecting the plant from salt stress.
  • B
    Increased photosynthesis in monocots.
  • C
    Providing large spaces for storage of sugars.
  • ✓
    Inward curling of leaves in monocots.
✓

Answer

Correct option: D.
Inward curling of leaves in monocots.
d
In grasses, certain adaxial epidermal cells along the veins modify themselves into large, empty, colourless cells. These are called bulliform cells. When the bulliform cells in the leaves have absorbed water and are turgid, the leaf surface is exposed. When they are flaccid due to water stress, they make the leaves curl inwards to minimise water loss.

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