Final answer:
The cytotoxic T-cell, also known as Tc cell or CD8+ T cell, destroys infected or cancerous cells within the cell-mediated immune response.
Step-by-step explanation:
The type of T-cell that destroys infected cells as part of the cell-mediated immune response is the cytotoxic T-cell. These cells are designed to target and eliminate cells that have been infected by pathogens, such as viruses or have become cancerous. Cytotoxic T-cells, also known as Tc cells or CD8+ T cells, use mechanisms such as releasing perforin and granzymes or engaging the Fas ligand pathway to induce apoptosis in infected cells. This process is crucial for preventing the spread of intracellular pathogens and early cancers. In contrast, other types of T-cells such as helper T-cells release cytokines to manage immune responses, memory T-cells provide a faster response upon re-encountering the same antigen, and regulatory T-cells help to maintain immune tolerance and prevent autoimmune diseases.