Duplicate of Immuno Week 3

Question 1

this is made by a pathogen outside of the host cell but then killed inside a different cell

Accepted Answer

exogenous antigen

Question 2

which of the following can only be expressed on APCs

Accepted Answer

MHC II

Question 3

B-cells always need help from t helper cells

Accepted Answer

False

Question 4

a virus must ____ to replicate

Accepted Answer

infect a cell

Question 5

most parasites are included as this kind of pathogen

Accepted Answer

extracellular pathogen

Question 6

M bovis is an example of

Accepted Answer

endogenous pathogen

Question 7

Professional antigen presenting cells involve

Accepted Answer

T-helper cells, exogenous antigen

Question 8

everyone in the animal kingdom (verterbrates and invertebrates) has MHC genes

Accepted Answer

False

Question 9

which of the follwing are nonmicrobial antigens

Accepted Answer

CD molecules, MHC molecules, blood-group antigens

Question 10

MHC molecules can present multiple peptides at one time

Accepted Answer

False

Question 11

these cells can only take up antigen that their receptors recognize

Accepted Answer

b-cells

Question 12

viral proteins are

Accepted Answer

endogenous antigen

Question 13

these pathogens can be viruses

Accepted Answer

intracellular pathogens

Question 14

when m. bovis is killed, its molecules are

Accepted Answer

endogenous antigens

Question 15

the following processes and presents antigen in lymph tissue

Accepted Answer

mature dendritic cells

Question 16

the flagellum of some bacteria makes them poorly immunogenic

Accepted Answer

False

Question 17

These microbes replicate outside host cells

Accepted Answer

extracellular pathogens

Question 18

which of the following can only recognize an antigen in the context of self-mhc molecules

Accepted Answer

t cells

Question 19

get pairing

Accepted Answer

MHCII - exogenous

Question 20

this surface molecule is used to define subsets of lymphocytes

Accepted Answer

CD

Question 21

which of the following present peptide fragments from protein antigens to T-cells and CTLs

Accepted Answer

both MHCs

Question 22

characteristics of viruses are:

Accepted Answer

viral contents make endogenous antigens, can be killed by nk cells and ctl cells, can replicate their envelope and change their spike proteins

Question 23

which of the following could cause extinction of a population

Accepted Answer

homogenous MHC genes, some MHC genes "turning off"

Question 24

amino acids determine which MHC molecuule an animal can produce

Accepted Answer

False

Duplicate of Immuno Week 3

Questions 24

Duplicate of Immuno Week 3

Questions 24