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WAEC Biology 2024 Question 23

Question 23

Photosynthesis and Plant Nutrition

The element required for chlorophyll formation in plants is

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

Answer: A (iron.)

Explanation

Iron is needed by the enzymes that make chlorophyll, so lack of iron causes yellow leaves (chlorosis). Magnesium, which is part of the chlorophyll molecule, is not among the options.