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WAEC Biology 1988 Question 15

Question 15

Excretion

Deamination is the process during which

  1. A.excess amino acid is broken down into ammonia and a keto-acid
  2. B.fats and oils are converted into an emulsion for absorption
  3. C.excess glucose is converted and stored as glycogen in the liver
  4. D.glycogen is reconverted into glucose through the action of glucagon
  5. E.excess amino acid is converted into proteins
Show the answer and explanation

Answer: A (excess amino acid is broken down into ammonia and a keto-acid)

Explanation

In the liver the amino group is removed from excess amino acids, forming ammonia (made into urea) and a keto-acid.