Q9 / 180 · NEET 2026 (Cancelled) · Botany

The main function of bulliform cells in grasses is :

  • A
    to make the leaf impermeable to fungal spores.
  • B
    to transport water.
  • C
    to perform photosynthesis.
  • Correct answer
    D
    to minimize water loss during water stress.

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.

Hence, the correct answer is option: 'D'.

More Anatomy of Flowering Plants Questions