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Opening and Closing of Stomata MCQs Quiz Online PDF Download eBook

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MCQs on Opening and Closing of Stomata PDF Download eBook

MCQ: During the day, the plants keep their

  1. stomata opens
  2. stomata closed
  3. phloem blocked
  4. xylem blocked

A

MCQ: The inner side of guard cells is

  1. rough
  2. straight
  3. concave
  4. convex

C

MCQ: The outer side of guard cells is

  1. concave
  2. convex
  3. rough
  4. none of above

B

MCQ: The number of guard cells of the stoma is

  1. ten
  2. two
  3. four
  4. eight

B

MCQ: The ions that flow back to guard cells, from epidermal cells at the end of the day are

  1. potassium ions
  2. magnesium ions
  3. phosphorus ions
  4. Sulphur ions

A