WAEC Biology 2007 Question 28

Question 28

Food Substances and Enzymes

Biuret's test is carried out on a food substance to indicate the presence of

  1. A.vitamins
  2. B.fats
  3. C.proteins
  4. D.starch
Show the answer and explanation

Answer: C (proteins)

Explanation

Biuret reagent turns purple or violet when protein is present.