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WAEC Biology 2023 Question 22

Question 22

Photosynthesis and Plant Nutrition

Stunted growth and small yellow leaves in plants are symptoms of the deficiencies of

  1. A.sulphur.
  2. B.iron.
  3. C.magnesium.
  4. D.nitrogen.
Show the answer and explanation

Answer: D (nitrogen.)

Explanation

Nitrogen is needed to make proteins and chlorophyll, so its shortage gives stunted growth and small, yellow (chlorotic) leaves.