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Construct a table to identify THREE types of T-lymphocytes, and outline the role of each type in the immune response. - HSC - SSCE Biology - Question 22 - 2009 - Paper 1
Question 22
Construct a table to identify THREE types of T-lymphocytes, and outline the role of each type in the immune response.
Worked Solution & Example Answer:Construct a table to identify THREE types of T-lymphocytes, and outline the role of each type in the immune response. - HSC - SSCE Biology - Question 22 - 2009 - Paper 1
Step 1
Identify THREE types of T-lymphocytes
Answer
| Type of T-lymphocyte | Role in the Immune Response |
|---|---|
| Helper T-Cells (Th) | Stimulate B-cells to produce antibodies and activate cytotoxic T-cells. They play a crucial role in orchestrating the immune response. |
| Cytotoxic T-Cells (Tc) | Directly kill infected or cancerous cells by recognizing specific antigens presented by those cells, playing a vital role in reducing viral load and tumor surveillance. |
| Regulatory T-Cells (Treg) | Help maintain immune tolerance by suppressing excessive immune responses and preventing autoimmunity, ensuring that the immune system does not attack the body’s own cells. |