T helper cells and cytotoxic T cells both function as part of the immune response by directly killing self cells which have become infected with non-self microbes.Group of answer choicesTrueFalse

__________ are the most abundant T cells, and their function is to __________.ANSWERT helper cells (CD4+); activate B cells to stimulate the humoral branch of adaptive immunityT cytotoxic cells (CD8+); directly destroy cells that are virus-infectedT helper cells (CD4+); coordinate the adaptive immune responseT cytotoxic cells (CD8+); seek and destroy cancer cells

Cytokines are chemicals released by "T" cells to combat infections. Group of answer choicesTrue False

The type of adaptive immunity in which T cells destroy virus-infected or cancer cells is -mediated immunity.

A patient found to have an abnormally low number of helper T cells in her blood contracts a bacterial infection.  During the infection, which of the following is most likely NOT affected by the patient's low count of helper T cells?A.Expression of major histocompatibility complex proteins that present bacterial antigens on the membrane of infected host cellsB.Proliferation of B lymphocytes in response to the bacterial infectionC.Levels of circulating antibodies against the invading bacteriumD.Activation of apoptosis-inducing cytotoxic T cells

An activated T helper cell becomes either an effector T helper cell or a memory T helper cell. What is the function of the effector T helper cell?ANSWER“Remember” the specific antigen and respond next time it is encounteredDestroy infected cells, cancer cells, and transplanted tissueRelease factors that help T cytotoxic cell and B cell activationRelease antibodies