Quiz 7

Question 1

What is the role of parietal cells?

Answer 1

stomach cells that secrete HCl

Question 2

____________ is activated by HCl secretion and released from chief epithelial cells

Answer 2

pepsin

Question 3

The stomach protects itself from acid by secreting ______

Answer 3

HCO3

Question 4

Microbes use the __________-__________ acid resistant system when exposed to very low pH

Answer 4

glutamine-dependent
** not always on

Question 5

When the GLU-dependent acid resistance system is turned on glutamine is brought into the cell via the ______ transporter

Answer 5

GadC

Question 6

When the GLU-dependent acid resistance system is turned on glutamine is converted into ________

Answer 6

GABA (converts a proton into CO2)

Question 7

most microbes only have Gad___ that converts GLU into GABA

Answer 7

GadB

Question 8

What virus can with stand very low pH?

Answer 8

HIV

Question 9

______ & _______ on H. pylori helps it attach to epithelial cells

Answer 9

BabA & SabA

Question 10

How does the multiple flagella of H/ pylor aid it?

Answer 10

swims through mucus layer

Question 11

What medication can cause increased bacterial overgrowth?

Answer 11

proton-pump inhibitor

Question 12

___________ is present throughout the whole large intestine

Answer 12

glycocalyx

Question 13

The majority of commensals are coated in _____

Answer 13

IgA

Question 14

What is a intracellular PRR?

Answer 14

NOD1&2

Question 15

A type I immune response is TH___, what are the cytokines?

Answer 15

TH1
IL-12, 18, IFN-g

Question 16

A type II immune response is TH___, what are the cytokines?

Answer 16

TH2
IL-3, 4, 5, 9, 13

Question 17

What TH2 cell’s cytokine is an alarmin?

Answer 17

IL-33

Question 18

A type III immune response is TH___, what are the cytokines?

Answer 18

TH17
IL-23, 6, 1, 17, 22

Question 19

Ig___ opsonizes bacteria in a type _____ reaction

Answer 19

IgG
type III