Proteins such as interferons and interleukins released by T cells are called what?

• A. Antibodies
• B. Hormones
• C. Enzymes
• D. Cytokines

Answer: (D)

Verified step by step guidance

1. Step 1: Begin by understanding the role of T cells in the immune system. T cells are a type of white blood cell that play a critical role in adaptive immunity, helping to identify and respond to pathogens.
2. Step 2: Recognize that proteins released by T cells are signaling molecules. These proteins help coordinate the immune response by communicating with other cells.
3. Step 3: Learn the definition of cytokines. Cytokines are small proteins that act as messengers in the immune system, regulating inflammation, immune responses, and cell communication.
4. Step 4: Differentiate cytokines from other types of proteins such as antibodies, hormones, and enzymes. Antibodies are produced by B cells to neutralize pathogens, hormones regulate physiological processes, and enzymes catalyze biochemical reactions.
5. Step 5: Conclude that interferons and interleukins are specific types of cytokines. Interferons help combat viral infections, while interleukins regulate immune cell activity.