$18,750 unfavorable variable overhead spending variance = $360,000 â $341,250. Variance is unfavorable because the actual variable overhead costs are higher than the expected costs given actual hours of 97,500. $68,250 unfavorable variable overhead efficiency variance = $341,250 â $273,000.
The function of cytotoxic T cells, also called killer T cells or cytotoxic T lymphocytes, is to protect the body from disease and infection. They do so by killing diseased cells. T cells are white blood cells that are part are the body's immune system. White blood cells defend your body against disease, cancer, infections and foreign substances.
helper T cell. helper T cell n. Any of a class of T cells that are activated by interacting with antigen-presenting cells, such as a dendritic cells, and then function to activate other cells of the immune system, including B cells, cytotoxic T lymphocytes, and phagocytes. Activated helper T cells usually have CD4 receptors on the surface. Also called T-helper cell. helper T cell n.