Normal Flora

Question 1

3 types

Answer 1

normal
transient
oppurtunistic

Question 2

normal flora

Answer 2

adapted to body and always present
on body surface- never under epithelium
commensal and mutualistic

Question 3

commensual

Answer 3

provide no benefit but do not harm

Question 4

mutualistic

Answer 4

provide benefit to human

Question 5

benefits to humans

Answer 5

produce bacteriocidal (toxic) substances
alter pH to ferment lactose to acid
outcompete opportunists for resources (microbial antagonism)
inactivate bacterial toxins
produce b12 and Vitamin K

Question 6

1st colonizers

Answer 6

from birth canal- Lactobacillus, Staph, Strep

large intestine- Bifidobacterium

Question 7

skin

Answer 7

Staph and Micrococcus

Question 8

mouth, nose and upper throat

Answer 8

Strep and Lactobacillus

Question 9

intestines

Answer 9

E. coli, Klebsiella, Enterobacter, Lactobacillus

Question 10

vagina

Answer 10

Lactobacillus and Candida

Question 11

urethra

Answer 11

Strep and Staph

Question 12

transient flora

Answer 12

removable with washing and disinfection

usually not harmful

Question 13

Opportunistic

Answer 13

disease causing

sometimes normal flora that gets under epithelium