Question

Which of the following is not a conjugated protein?

• A. Glycoproteins
• B. Lipoproteins
• C. Haemoglobin
• D. Globulins

Answer 1

The correct option is D Globulins

Based on the presence of chemical components other than amino acids, proteins are classified as simple or conjugated.

Simple proteins are made up of only amino acids. For example, keratin, egg albumin, globulins, etc.

Conjugated proteins contain other components in addition to the amino acids. The additional part is called the prosthetic group. For example, glycoproteins (prosthetic group - carbohydrates), lipoproteins (prosthetic group - lipids), haemoglobin (prosthetic part - iron-containing heme part).