The cells responsible for cellular immunity are the ________ cells. Question 5Select one:a.NKb.plasmac.helper Td.cytotoxic T e.suppressor T

Answer Breakdown

To identify which cells are responsible for cellular immunity, it's important to understand the roles of the various types of lymphocytes involved in the immune response.

1. NK Cells (Natural Killer Cells): These are part of the innate immune system and are responsible for killing virally infected cells but are not primarily involved in cellular immunity.

2. Plasma Cells: These are differentiated B cells that produce antibodies. They play a key role in humoral immunity rather than cellular immunity.

3. Helper T Cells (Th Cells): These cells are essential in orchestrating the immune response but do not directly kill infected cells.

4. Cytotoxic T Cells (Tc Cells): These are specifically involved in directly killing infected cells and thus play a crucial role in cellular immunity.

5. Suppressor T Cells (Regulatory T Cells): These cells help to regulate or suppress other immune cells but are not primarily responsible for direct cellular immune responses.

Final Answer

The cells responsible for cellular immunity are the cytotoxic T cells (option d).