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WAEC Biology 2006 Question 31

Question 31

Food Substances and Enzymes

Study the following list of deficiency symptoms in animals:
I. Loss of appetite and weight; II. Delayed healing of wounds; III. Rickets; IV. Sterility in animals; V. Failure of blood to clot; VI. Night blindness
Which of the following combination of food substances would correct the deficiency numbered II?

  1. A.Tomatoes, oranges and mangoes
  2. B.Yeast, liver and rice
  3. C.Red palm oil, carrot and egg yolk
  4. D.Green vegetables, butter and meat
Show the answer and explanation

Answer: A (Tomatoes, oranges and mangoes)

Explanation

Slow wound healing is a sign of vitamin C deficiency (scurvy), and fresh fruits such as tomatoes, oranges and mangoes are rich in vitamin C.