Question

question 13 (bonus) (1 point)
which of the following is a function of t cells in specific immunity?
differentiating into plasma cells
directly killing infected cells
differentiating into memory cells
producing antibodies

Explanation:

• Differentiating into plasma cells: Plasma cells are derived from B - cells, not T - cells. B - cells differentiate into plasma cells which produce antibodies.
• Directly killing infected cells: Cytotoxic T - cells (a type of T - cell) can directly kill infected cells. They recognize antigens on the surface of infected cells and release cytotoxic substances like perforin and granzymes to induce apoptosis (programmed cell death) in the infected cell.
• Differentiating into memory cells: Both B - cells and T - cells can differentiate into memory cells. Memory T - cells are long - lived cells that can quickly respond upon re - exposure to the same antigen.
• Producing antibodies: Antibodies are produced by plasma cells (derived from B - cells), not T - cells.

Answer:

B. Directly killing infected cells, C. Differentiating into memory cells