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JAMB Biology 1982 Question 4

Question 4

Photosynthesis and Plant Nutrition

Some of the major elements required by plants are

  1. A.Potassium, nitrogen, phosphorus, sodium,calcium
  2. B.Nitrogen, phosphorus, molybdenum, sodium, calcium.
  3. C.Potassium, phosphorus, molybdenum, sodium, calcium
  4. D.Potassium, nitrogen, iron, sodium, calcium
  5. E.Potassium, nitrogen, phosphorus, silicon, cadmium.
Show the answer and explanation

Answer: A (Potassium, nitrogen, phosphorus, sodium,calcium)

Explanation

Only A avoids trace elements (molybdenum, iron) and non-nutrients (silicon, cadmium); nitrogen, phosphorus, potassium and calcium are major nutrients.