Question:
Describe the structure and functions of an antibody.
Describe the structure and functions of an antibody.
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Antibody = Y-shaped, binds antigens, neutralizes pathogens, activates immunity.
Updated On: Mar 7, 2025
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Solution and Explanation
Antibodies are Y-shaped proteins produced by B-cells that neutralize pathogens.
Structure:
- Composed of four polypeptide chains: two heavy and two light chains.
- Each antibody has a variable region that binds to specific antigens.
Functions:
- Neutralize pathogens by binding to their surface.
- Activate complement system to destroy microbes.
- Facilitate phagocytosis by marking pathogens for destruction.
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