Infectious agents and the body's defence mechanisms L11

Question 1

what are prions

Answer 1

not organisms
small protein infectious particles
heat resistant
slow replication

Question 2

two main subsets of viruses

Answer 2

DNA and RNA

Question 3

bacteria=

Answer 3

prokaryotic cells

Question 4

two main classes of bacteria

Answer 4

gram postive and gram negative

Question 5

protozoa

Answer 5

cause parasitic disease

extensive multiplication in host and complex life cycles

Question 6

helminths=

Answer 6

types of worms like parasite

infection by larvae/ eggs

Question 7

what can fungi be classified by

Answer 7

appearance or type of infection

Question 8

what ribosomes do prokaryotes have

Answer 8

70s

Question 9

what ribosomes do eukaryotes have

Answer 9

80s

Question 10

what do prokaryotes lack

Answer 10

a nucleus

Question 11

how many chromosomes do prokaryotes have

Answer 11

1 singular

Question 12

in which cells are all material for respiration bound in membranes

Answer 12

eukaryotes

Question 13

acute inflammatory response=

Answer 13

pathogen binds complement C3 activating the complement cascade
histamine release
phagocytosis

Question 14

main three mononuclear phagocytes

Answer 14

blood monocytes
tissue macrophages
dendritic cells

Question 15

what wall do gram positive have

Answer 15

peptidoglycan (cell wall)

Question 16

what stops gram positive bacteria

Answer 16

penicillin

Question 17

feature of gram negative

Answer 17

lipopolysaccharide outer leaflet of outer membrane

Question 18

3 forms of bacteria replication

Answer 18

genome replication
septum formation
cell division

Question 19

what is a bacteriophage

Answer 19

virus that infects bacteria

Question 20

CD4+ T cell=

Answer 20

help B cells make antibody

Question 21

CD8+ T cell=

Answer 21

cytotoxic T cell