2.4.4: Types of immunity

Question 1

What are the four types of immunity

Answer 1

active, passive, natural, artifical

Question 2

What is meant by natural immunity

Answer 2

acquired by normal life processes

Question 3

What is meant by artificial immunity

Answer 3

acquired by deliberate exposure

Question 4

What is meant by passive immunity

Answer 4

lymphocytes not activated, no antibodies produced

Question 5

What is meant by active immunity

Answer 5

lymphocytes activated, antibodies produced

Question 6

give an example of natural active immunity

Answer 6

infection by pathogen

Question 7

give an example of artificial active immunity

Answer 7

antigen injection (vaccine)

Question 8

give an example of artificial passive immunity

Answer 8

antibody injection

Question 9

give an example of natural passive immunity

Answer 9

breastfeeding and across the placenta

Question 10

Why would someone be given an antibody injection

Answer 10

someone with a compromised immune system or if you have a virulent pathogen and body doesn’t have enough time to fight (rabies)
especially given to armed forces/medical staff

Question 11

do antibodies given via an antibody injection last long in the body or not?

Answer 11

do not stay in body too long as these are ‘non-self’ cells and so would trigger an immune response