Antigen function — UPSC Prelims PYQ 2001
Antigen is a substance which:
- destroys harmful bacteria
- is used to treat poisoning
- lowers body temperature
- stimulates formation of antibody
Explanation
Option (d) is correct
- An Antigen is a substance that stimulates the body’s immune system to produce antibodies. Antigens are usually foreign substances such as bacteria, viruses, toxins, or other pathogens that trigger an immune response in the body.
Answer: (d) stimulates formation of antibody
