Question

What happens when antibodies bind to specific antigens?

A

Kill the pathogen that the antigen belongs to

B

Activate cytotoxic T cells

C

Acivate complement system

D

Both B and C

Medium
Solution
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Correct option is D)

Opsonisation is the process by which the pathogen is recognised for ingestion and eliminated by the phagocytes. Opsonization involves the binding of an opsonin (antibody) to an epitope on a pathogen. After opsonin binds to the membrane, phagocytes are attracted to the pathogen. Phagocytes engulf the antigen and promote phagocytosis (digestion of antigen).
So, the correct answer is 'Opsonisation'.

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