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Questions and Answers
Are antigens found on the surface of cells?
True
What is the purpose of antigens?
Self-antigens are molecules found inside of our own cells
False
What is the purpose of self-antigens?
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What kinds of molecules typically act as antigens?
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Antigens are detected by Lymphocytes
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How do immune cells detect antigens?
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What are APC's?
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What is the role of APC's?
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How many different antigens can a single Lymphocyte detect?
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Study Notes
Antigens and Immune Response
- Antigens are found on the surface of cells.
- The purpose of antigens is to stimulate an immune response.
Self-Antigens
- Self-antigens are molecules found inside of our own cells.
- The purpose of self-antigens is to help the immune system distinguish between the body's own cells and foreign substances.
Types of Antigens
- Proteins, peptides, and polysaccharides are typical molecules that act as antigens.
Antigen Detection
- Antigens are detected by Lymphocytes, a type of immune cell.
- Immune cells detect antigens through the recognition of specific molecular structures on the antigen's surface.
Antigen-Presenting Cells (APCs)
- Antigen-Presenting Cells (APCs) are immune cells that process and display antigens on their surface.
- The role of APCs is to present antigens to Lymphocytes, triggering an immune response.
Lymphocyte-Antigen Interaction
- A single Lymphocyte can detect multiple antigens, but the exact number is not fixed.
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