Action Of Lymphocytes

Question 1

Lymphocytes

Answer 1

Cells that produce antibodies when encountering microbes

Question 2

Antibodies

Answer 2

Join onto specific part of microbe called antigen

Question 3

Antigen

Answer 3

Causes microbes to rupture/group together

Question 4

What does rupturing of cells do?

Answer 4

Causes them to die, their numbers therefore decrease overtime + the infection is reduced

Question 5

Pathogen with antigens on surface + antibodies—>

Answer 5

Antibodies attach to multiple antigens so the pathogens clump up.
Antibodies send out a signal to the white blood cell. The white blood cell comes + engulfs the pathogens.

Question 6

What are memory cells? (Specialised cells)

Answer 6

Ensure immune system responds quickly to infections.

Question 7

Immune response steps

Answer 7

1) lymphocyte detects a foreign antigen
2) lymphocyte divides by mitosis
3) large numbers of plasma cell are produced. They secrete proteins called antibodies
4) antibodies bind to the antigens on pathogens + inactivate + destroy pathogens.
5) this produces memory cells which produce a rapid immune response on second exposure to the antigen.