Question

question 9 (1 point)
which of the following is not a type of antigen - presenting cell?
t cells
macrophages
b cells
dendritic cells
question 10 (bonus) (1 point)
what is the primary function of complement proteins in the immune system?
antibody production
antigen presentation
opsonization
phagocytosis

Explanation:

• Question 9: Antigen - presenting cells (APCs) include macrophages, B cells, and dendritic cells. T cells are not APCs. They are part of the adaptive immune response and can interact with APCs but do not present antigens in the same way.
• Question 10: Complement proteins have several functions. Opsonization is one of their primary functions. Antibody production is mainly by B cells, antigen presentation is by APCs, and phagocytosis is a function of phagocytic cells (like macrophages and neutrophils), but complement proteins enhance phagocytosis through opsonization.

Answer:

• Question 9: T cells
• Question 10: Opsonization