Microbiome and Pathogens by Site

Question 1

Normal microbiome

Answer 1

Bacteria that normally colonize a particular body site

Prevent colonization and infection by exogenous organisms

Question 2

What causes changes to the normal flora?

Answer 2

Age, nutritional status, stress, disease states, compromised, drugs, alcohol

Question 3

Staphylococcus epidermidis

Answer 3

Surface colonizer, potential pathogen of bactermia and endocarditis

Question 4

Nose and nasopharynx buggies

Answer 4

S. pneumoniae
H. influenzae
N. meningitidis
Streptococci mutans, gordonii, mitis

Question 5

Helicobacter pylori

Answer 5

Gastric ulcer cause

Question 6

Ileum, jejunum

Answer 6

Anaerobes, Enterobacteriaceae

Candid albicans

Question 7

Enterobacteriaceae species

Answer 7

Escherichia
Klebsiella
Serratia
Enterobacter

Question 8

More anaerobes than

Answer 8

faculitative aerobes

Question 9

Oral contraceptives can alter

Answer 9

Population of Lactobacilli –> overgrowth of C. albicans

Question 10

Aerobic

Answer 10

Need air

S. Aureus

Question 11

Anaerobic

Answer 11

No air –> lack protective enzymes for ROS

B. animalis

Question 12

Facultatively anaerobic

Answer 12

Need some amount of air
E. coli
Clostridium (endospores)

Question 13

Microaerophilic

Answer 13

Need some amount of air

C. jejuni

Question 14

Moderate anerobes

Answer 14

2-8%
B. fragilis
F. nucleatum

Question 15

Strict anaerobes

Answer 15

0.5&
C. haemolyticum
C. novyi

Question 16

Phase 1

Answer 16

Slow down or cessation of growth

Bacteriostatic effect

Question 17

Phase 2

Answer 17

Lethal and irreversible effect due to prolong exposure to oxygen
Bactericidal effect