T cells exert their actions primarily by secreting what type of proteins?

Prepare for the AAB Medical Technologist (MT) Generalist Exam with flashcards and multiple choice questions. Each question includes hints and explanations to boost your understanding. Get exam-ready now!

T cells are a crucial component of the adaptive immune system, and they exert their effects primarily by secreting signaling proteins known as cytokines. These cytokines play a vital role in cell signaling during immune responses, facilitating communication between immune cells and coordinating the activities necessary to mount an effective response against pathogens.

When T cells recognize antigens presented by other cells, they become activated and produce cytokines that can influence the behavior of other immune cells, such as B cells and macrophages, enhancing their ability to respond to infections. This is essential for regulating the immune response, promoting inflammation, and mediating various immune functions, including cell proliferation and differentiation.

While antibodies, enzymes, and growth factors are also important in various biological processes and immune responses, cytokines are the primary proteins secreted by T cells to carry out their functions in the immune system. Thus, the correct answer underscores the specialized role of T cells in immune modulation through cytokine secretion.

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