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WAEC Biology 2023 Question 24

Question 24

Food Substances and Enzymes

The food substance that would produce the highest amount of energy is

  1. A.glucose.
  2. B.fat.
  3. C.amino acid.
  4. D.protein.
Show the answer and explanation

Answer: B (fat.)

Explanation

Fat releases about 38 kJ per gram, roughly twice as much as carbohydrate or protein (about 17 kJ per gram).