Question

T-lymphocytes mature and differentiate in the thymus. Cytotoxic T-lymphocytes ____________ secrete antibodies. Cytotoxic T-lymphocytes ____________ in direct contact with an infected cell in order to kill it. Cytotoxic T-lymphocytes secrete ____________ , which cause a hole in the target cell's plasma membrane.

Answer 1

T-lymphocytes mature and differentiate in the thymus. Cytotoxic T-lymphocytes _do not_ secrete antibodies. Cytotoxic T-lymphocytes __come__ in direct contact with an infected cell in order to kill it. Cytotoxic T-lymphocytes secrete __perforins_ , which cause a hole in the target cell's plasma membrane

Step-by-step explanation:

• T lymphocytes are the type of immune cells that develop from stem cells in bone marrow and mature and differentiate in thymus.
• T cells may be either T helper cell (CD8+) or T cytotoxic cells (CD4+).
• Antibodies are secreted by plasma cells. T cytotoxic cells come in direct contact with infected cell to kill it by secreting the perforins specifically virus infected cells.