Leaf Anatomy · Botany

Which cells in grass leaves are involved in rolling and unrolling of the leaf blade during water stress?

  1. Companion cells
  2. Tracheids
  3. Pollen mother cells
  4. Bulliform cells
Show answer and explanation

Correct answer: Bulliform cells

Bulliform cells are large epidermal cells found in many grass leaves. When they lose turgor during water stress, the leaf may roll to reduce exposed surface area.

Difficulty: Medium Question 18 of 19

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