Bacterial taxonomy

Question 1

two gram postivie examples of circular (coccus) shape

Answer 1

staph, strep

Question 2

one gram negative example of circular (coccus) shape

Answer 2

neisseria

Question 3

Rod (bacillus) shape in gram positive?

Answer 3

Clostridium
Corynebacterium
Bacillus
Listeria
Mycobacterium (acid-fast)
Gardnerella (gram variable)

Question 4

Rod (bacillus) shape in gram negative?

Answer 4

Enterics:

1. E. coli
2. Shigella
3. Salmonella
4. Yersinia
5. Klebsiella
6. Proteus
7. Enterobacter
8. Serratia
9. Vibrio
10. Campylobacter
11. Helicobacter
12. Pseudomonas
13. Bacteroides

Respiratory

1. Haemophilus (pleomorphic)
2. Legionella (silver)
3. Bordetella

Zoonotic

1. Francisella
2. Brucella
3. Pasteurella
4. Bartonella

Question 5

What two bugs are considered as “branching filamentous?”

Answer 5

1. Actinomyces

2. Nocardia (weakly acid fast)

Question 6

what bugs are considered to be “pleomorphic?”

Answer 6

1. Rickettsiae (Giemsa)

2. Chlamydiae (Giemsa)

Question 7

what bugs are considered to be “spiral?”

Answer 7

Spirochetes

1. Borrelia (Giemsa)
2. Leptospira
3. Treponema

Question 8

what bacteria does NOT have any cell wall?

Answer 8

Mycoplasma

Question 9

what two bacteria have unusual cell membranes/walls?

Answer 9

1. mycoplasma (NO cell wall)

2. mycobacteria

Question 10

what is the component of cell membrane of mycoplasma?

Answer 10

sterols (no cell wall)

Question 11

what is the compoenent of cell wall of mycobacteria?

Answer 11

mycolic acid and has high lipid content