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ICSE Class 10 Biology Question 1 of 30

Solved Sample Paper 5 — Question 6

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6
Question

Question 1(vi)

During the mechanism of opening and closing of stomata, the important factor is

  1. the protein content of the cells
  2. the turgid and flaccid state of the guard cell
  3. the starch content of the cells
  4. the presence of chloroplast in the guard cell
Answer

the turgid and flaccid state of the guard cell

Reason — Stomata open when guard cell are turgid and closes when guard cells are flaccid.