Question

Which of the following is not the function of helper T cells is ____________

(a) Produce soluble signaling proteins called cytokines, which include the interleukins

(b) They help activate cytotoxic T cells to kill infected target cells

(c) They help activate B cells to secrete antibodies and macrophages to destroy ingested microbes

(d) They recognize and bind extracellular ligands

This question was posed to me in an interview.

This question is from Complementary Interactions Between Proteins and Ligands: The Immune System and Immunoglobulins in portion Three Dimensional Structure Of Proteins and Protein Function of Biochemistry

Answer 1

Right choice is (d) They recognize and bind extracellular ligands

Easy explanation: The function of TH cells is to interact with macrophages and secrete cytokines that stimulate TC, TH and B cells to proliferate.