Question

Which of the following protein destroy the antigen when it enters in body cell?

• A. Antibodies
• B. Insulin
• C. Chromoprotein
• D. Phosphoprotein

Answer 1

The Correct Option is A

To determine which protein destroys the antigen when it enters a body cell, we need to understand the role of each protein mentioned in the options:

1. Antibodies: These are proteins produced by the immune system. They identify and neutralize foreign objects like bacteria, viruses, and toxins, which are collectively known as antigens. Antibodies bind to antigens and help in their elimination, making them crucial in the immune response.
2. Insulin: This is a hormone, not primarily a protein that interacts with antigens for immune responses. Insulin is involved in the regulation of blood glucose levels and is secreted by the pancreas.
3. Chromoprotein: These are conjugated proteins with a pigmented molecule, such as hemoglobin or cytochromes. They do not have a role in directly interacting with or destroying antigens.
4. Phosphoprotein: These are proteins that have phosphate groups attached to them. While they have various biological roles, they are not directly involved in confronting or neutralizing antigens.

From the explanation above, it is evident that antibodies are the proteins responsible for neutralizing antigens. They recognize and bind to specific antigens and facilitate their removal from the body through various mechanisms, such as agglutination, precipitation, neutralization, and promoting phagocytosis.

Thus, the correct answer is Antibodies.