Question

3 Which atom is not found in
proteins?
(a) Carbon
(b) Nitrogen
(c) Phosphorus (d) Sulphur
​

Answer 1

Answer:

sulphur.

Explanation:

Proteins, carbohydrates and lipids are made from three basic molecules: carbon, hydrogen and oxygen. However, all proteins contain an element not found in carbohydrates and lipids is nitrogen. Nitrogen which is present in all amino acids (the building blocks that make up the protein chains).

Answer 2

Answer:

Proteins, carbohydrates and lipids are made from three basic molecules: carbon, hydrogen and oxygen. However, all proteins contain an element not found in carbohydrates and lipids is nitrogen. Nitrogen which is present in all amino acids (the building blocks that make up the protein chains).