Step 1: Understand what T cells are. T cells are a type of white blood cell that play a crucial role in the immune system.
Step 2: Learn about antigens. Antigens are substances that can trigger an immune response, often found on the surface of pathogens like bacteria and viruses.
Step 3: Know the types of antigens. There are two main types of antigens: exogenous (from outside the body) and endogenous (produced within the body).
Step 4: Recognize that T cells can identify both types of antigens. Exogenous antigens are presented to T cells by other immune cells, while endogenous antigens are recognized when they are displayed on the surface of infected or abnormal cells.
Step 5: Conclude that T cells are versatile and can respond to a wide range of threats by recognizing both exogenous and endogenous antigens.
