Components of the immune systems

Question 1

What are antigens?

Answer 1

any part of an organism/substance which is recognised as foreign by the immune system and goes on to trigger an immune response.

Question 2

What type of cell are Macrophages and Neutrophils?

Answer 2

Phagocytes

Question 3

Function of Phagocytes

Answer 3

Engulfs and digests pathogens by fusion of the phagosome with lysosomes

Question 4

Name 3 types of t cells

Answer 4

T helper cells

Cytotoxic T cells

T memory cells

Question 5

What do T helper cells do?

Answer 5

Stimulates B cells to divide and secrete antibodies

Question 6

What do Cytotoxic T cells do?

Answer 6

kill abnormal cells and infected body cells via perforin

Question 7

What do T memory cells do?

Answer 7

Remain in the blood for years and provide long term protection

Question 8

Name 2 b cells

Answer 8

Plasma cell B memory cell

Question 9

What do Plasma cells do?

Answer 9

Secrete antibodies

Question 10

What do B memory cells do?

Answer 10

Remain in the blood for years and provide long term protection

Question 11

What are antibodies

Answer 11

a protein produced by lymphocytes in response to the presence of the corresponding antigen.

Question 12

How do antibodies agglutinate pathogens?

Answer 12

forming antigen-antibody complexes, leading to phagocytosis & neutralise toxins.

Question 13

Antibody diagram

Answer 13

see photo you beautiful bastard