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JAMB Biology 1983 Question 9

Question 9

Food Substances and Enzymes

If an organic compound has its hydrogen: oxygen ratio as 2:1, it is likely to be

  1. A.a protein
  2. B.a carbohydrate
  3. C.a fat
  4. D.a fatty acid and glycerol
  5. E.an amino acid
Show the answer and explanation

Answer: B (a carbohydrate)

Explanation

Carbohydrates have the general formula Cx(H2O)y, so hydrogen and oxygen are in the same 2:1 ratio as in water.