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WAEC Agricultural Science 2007 Question 49

Question 49

Animal Nutrition

Which of the following groups of macro-nutrients is a constituent of protein?

  1. A.Nitrogen, phosphorus and sulphur
  2. B.Calcium, magnesium and potassium
  3. C.Magnesium, calcium and phosphorus
  4. D.Sulphur, magnesium and potassium.
Show the answer and explanation

Answer: A (Nitrogen, phosphorus and sulphur)

Explanation

Proteins contain nitrogen and sulphur (some also phosphorus).