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JAMB Biology 1998 Question 13

Question 13

Photosynthesis and Plant Nutrition

In a water culture experiment, a plant showed poor growth and yellowing of the leaves. These may be due to deficiency of

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

Answer: C (magnesium)

Explanation

Magnesium is part of the chlorophyll molecule; without it leaves cannot make chlorophyll, turn yellow, and the plant grows poorly.