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NEET2026BotanyAnatomy of Flowering PlantsActual

The main function of bulliform cells in grasses is :

Options

  1. Ato make the leaf impermeable to fungal spores.
  2. Bto transport water.
  3. Cto perform photosynthesis.
  4. Dto minimize water loss during water stress.

Correct answer

D. to minimize water loss during water stress.

Step-by-step solution

Bulliform cells are large, empty, colourless cells present on the adaxial epidermis of grass leaves. When water is abundant, these cells absorb water, become turgid, and cause the leaf surface to be exposed. During water stress, they lose turgor pressure and become flaccid, which makes the leaves curl inwards to minimize water loss. Answer: to minimize water loss during water stress.

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