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WAEC Biology 1992 Question 21

Question 21

Photosynthesis and Plant Nutrition

Which of the following structures of the leaf contains air?

  1. A.Guard Cell
  2. B.Palisade layer
  3. C.Intercellular space
  4. D.Vascular bundle
  5. E.Upper epidermis
Show the answer and explanation

Answer: C (Intercellular space)

Explanation

Air fills the intercellular spaces of the spongy mesophyll, linked to the stomata.