WAEC Biology 2012 Question 36

Question 36

Food Substances and Enzymes

Which of the following food substances will have little or no calorific value?

  1. A.Proteins
  2. B.Carbohydrates
  3. C.Lipids
  4. D.Water
Show the answer and explanation

Answer: D (Water)

Explanation

Water supplies no energy; proteins, carbohydrates and lipids all release energy when oxidised.