The Role of Antigen-Presenting Cells

Question 1

T-lymphocytes produce an immune response when they are exposed to a specific antigen

T cells will only bind to an antigen if it is present on

Answer 1

the surface of an antigen-presenting cell

Question 2

An antigen-presenting cell is one of the host’s cells that has

Answer 2

been invaded by a pathogen and is displaying the antigen on its cell surface membrane

Question 3

What does an antigen-presenting cell do?
These cells present / protect the antigens from

Answer 3

from toxins, foreign cells and ingested pathogens

Question 4

These cells present the antigens from toxins, foreign cells and ingested pathogens

They help to recruit other cells of the immune system to produce a

Answer 4

specific immune response

Question 5

Once the surface receptor of the T cell binds to the specific complementary antigen (on the antigen-presenting cell) it becomes sensitised and starts

Answer 5

dividing to produce a clone of cells

Question 6

Several different immune system cells can present antigens
The most common types are

Answer 6

macrophages and dendritic cells
Although less common, neutrophils can also act as antigen-presenting cells