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JAMB Biology 1993 Question 30

Question 30

Growth and Development

The function of the structure labelled G is to

Diagram for this question
  1. A.carry out initial photosynthesis for the seedling
  2. B.protect the young leaves from mechanical damage
  3. C.protect the young leaves from sunlight
  4. D.protect the young leaves from insect pests.
Show the answer and explanation

Answer: B (protect the young leaves from mechanical damage)

Explanation

G is the coleoptile, a sheath covering the plumule of a grass seedling; it protects the young leaves as they push through the soil.