L 1-2

Question 1

Name 2 g+ cocci

Answer 1

Staph aureus

Strep pyogenes

Question 2

Name 1 g- cocci

Answer 2

Neisseria gonorrhoeae

Question 3

Name 2 g+ bacilli

Answer 3

Bacillus anthracis

Clostridium tetani

Question 4

Name 2 g- bacilli

Answer 4

E. Coli

Pseudomonas aeruginosa

Question 5

Name 1 acid-fast

Answer 5

Mycobacterium tuberculosis

Question 6

Name 1 actinomycetes

Answer 6

Actinomyces isrealii

Question 7

Name 2 spirochettes

Answer 7

Treponema pallidum

Borrelia burgdorferi

Question 8

Name 1 mycoplasmas

Answer 8

Mycoplasma pneumoniae

Question 9

Name 1 chlamydiae

Answer 9

Chlamydia trachomatis

Question 10

Name 1 rickettsiae

Answer 10

Rickettsia rickettsii

Question 11

What bacterium lacks a cell wall?

Answer 11

Mycoplasma pneumoniae

Question 12

glycoprotein vs glycolipid

Answer 12

glycoproteins =>receptors

glycolipids =>markers

Question 13

What groups of antibiotics attack peptidoglycan?

Answer 13

penicillin, beta-lactams, cephalosporin

Question 14

actinomyces isrealii is gram pos/neg?

Answer 14

gram pos

Question 15

Corynebacterium diphtheriae gram +/-?

Answer 15

gram +

Question 16

Characteristics of gram + cell wall

Answer 16

thicker
less fat
retains chrystal violet
stains purple/blue
Teichoic acid on outer layer (WTA)
Lipoteichoic acid through wall into membrane (LTA)

Question 17

Characteristics of gram - cell wall

Answer 17

thinner
more fat
stains red with safranin
lipopolysaccharide (LPS)

Question 18

Functions of teichoic acid and LTA

Answer 18

adherence to cells
anti-phagocytosis
DNA uptake
magnesium binding
endotoxin-like activities

Question 19

Lipopolysaccharide

Answer 19

LPS
Part of gram (-) bac outer membrane
oligosaccharide portion outermost-serotype
Lipid A in cell wall=> endotoxin effects like cytokines, inflammation

Question 20

products of periplasmic space

Answer 20

nuclease, protease, catalase, beta-lactamase

Question 21

Acid fast cell walls

Answer 21

have peptidoglycan layer
stain red/pink
Mycolic acid layer-waxy coat=>resists therapy
Tetrameric porins

Question 22

3 examples of acid fast bac

Answer 22

Mycobacterium tuberculosis
Nocardia asteroides
M. Leprae

Question 23

6 bacteria with a capsule

Answer 23

Strep. pneumoniae
Klebsiella pneumoniae
Haemophilus influenzae
Pseudomonas aeruginosa
Neisseria meningitis
Staph. aureus

Question 24

4 flagellar arrangments

Answer 24

monotrichous
lophotrichous
amphitrichous
peritrichous

Question 25

explain serotyping with O, K, H

Answer 25

oligosaccharide
kapsule
flagellum

Question 26

Types of pili

Answer 26

somatic=>binds human cells

conjugal=>gene transfer

Question 27

endopspores

Answer 27

gram +
clostridium and bacillus
calcium dipicolinate=>heat
SASPs=>UV and dessication
keratin=>chemical