principles of immune responses

Question 1

5 functions of immune system

Answer 1

detect threat, respond effectively, minimise collateral damage, return to healthy self (homeostasis), remember “threat” again

Question 2

3 exploitations of immune system in medicine

Answer 2

vaccination, immunotherapy, diagnosis

Question 3

principle function of immune system

Answer 3

defence against microbial infections

Question 4

why must immune response be flexible and rapid

Answer 4

host and pathogen exert pressure on each other, but bacteria replicate in minutes and virus in hours so evolve faster

Question 5

what allows the immune response to be flexible and rapid

Answer 5

polymorphic genes, with variation selected for by exposure to pathogens

Question 6

what is active immunity

Answer 6

exposure to antigen to generate response; antibodies obtained from body

Question 7

what is passive immunity

Answer 7

exposure to antibodies obtained from outside body