Question

9.
Preet. told Radha that the
Carbohydrates are made of Carbon,
Hydrogen and Oxygen. Surprisingly
Radha asked what substance other than
Carbon, Hydrogen and Oxygen is in
proteins.
(a) lodine
(b) Minerals
(C) Nitrogen
(d) All the above.​

Answer 1

(C) Nitrogen is the correct answer.

• Carbohydrates, Proteins, Nucleic acids and Lipids are macromolecules.
• Carbohydrates, as stated, are made of carbon, hydrogen and oxygen. Example of carbohydrates is glucose, fructose etc.
• Proteins are made up of combination of different or same type of amino acids. They have characteristic amino group and carboxylic group.
• Lipids are formed by combination of fatty acids and glycerols.