The inner wall of a guard cell is

  1. thinner than the outer wall
  2. thicker and less elastic than the outer wall
  3. absent
  4. made of suberin
Answer

B) thicker and less elastic than the outer wall

Uneven thickening causes curving. AS & A Level Biology · Topic 14 Homeostasis · 14.2 Homeostasis in plants

Biology MCQ · More A Level Biology: Homeostasis MCQs · Practise