Question

State whether true or false:
T killer cells get activated only after a signal from helper T cells.

• A. True
• B. False

Answer 1

The correct option is A

True

T cells are responsible for cell mediated immunity. There are two types of T cells - killer T and helper T cells, each having a specific function. Helper T cells bind to macrophages that display non-self proteins on their surface. As they bind, they start to divide and release chemicals - typically cytokines, that activate the killer T cells to attack.