Bacterial Classifications

Question 1

Common bacteria on the skin?

Answer 1

“Dolly Parton Start Stripping”…

-Diphtheroids (ie. Corynebacterium Diphtheriae)
-Propionibacteria (ie. Propionibacterium Acnes)
-Staphylococci (ie. Staphylococcus Aureus)
-Streptococci (ie. Streptococcus Pneumoniae)

Question 2

Common bacteria in the GI Tract?

Answer 2

“Bill Cosby Did Extremely Fast Sex”…

-Bacteroides (ie. Bacteroides Fragilis)
-Clostridium (ie. Clostridium Difficile)
-Diphtheroids (ie. Corynebacterium Diphtheriae)
-Enterobacteriaceae (ie. Escherichia Coli ; Klebsiella Pneumoniae)
-Fusobacterium (ie. Fusobacterium Nucleatum)
-Streptococci (ie. Streptococcus Pneumoniae)

Question 3

Common bacteria in the Upper Respiratory Tract?

Answer 3

“Bart, Homer, Ned, Simpsons”…

-Bacteroides (ie. Bacteroides Fragilis)
-Haemophilus (ie. Haemophilus Influenzae)
-Neisseria (ie. Neisseria Catarrhalis)
-Streptococci (ie. Streptococcus Pneumoniae)

Question 4

Common bacteria in the Genital Tract?

Answer 4

“Cum Load MESS”…

-Corynebacterium (ie. Corynebacterium Glucuronolyticum)
-Enterobacteriaceae
-Lactobacillus (ie. Lactobacillus Acidophilus)
-Mycoplasma (ie. Mycobacterium Smegmatis)
-Staphylococci
-Streptococci

Question 5

What is a “bacilli” morphology?

Answer 5

Rod-Shaped

Question 6

What is a “cocci” morphology?

Answer 6

Spherical

Question 7

What does “diplococci” morphology refer to?

Answer 7

Spherical & Paired

Question 8

What does “streptococci” morphology refer to?

Answer 8

Spherical & Chained

Question 9

What is a “spirochete” morphology?

Answer 9

Spiraled

Question 10

Characteristic differences between Gram-Positive and Gram-Negative bacteria?

Answer 10

GP: Stain purple, thick peptidoglycan cell wall (multi-layered), single plasma membrane interior to cell wall.

GN: Stain red / pink, thin peptidoglycan cell wall (single layer), outer & inner membranes that sandwich cell wall, presence of lipopolysaccharides on outer membrane.

Question 11

Staphylococcus Aureus classification?

Answer 11

GP Cocci and Coagulase-Positive

* S. epidermis, S. saprophyticus, S. hominis, S. hemolyticus, S. warneri are all Coagulase-Negative. The coagulase test is performed to differentiate S. aureus from the other Staph species!*

Question 12

Streptococcus Pneumoniae classification?

Answer 12

GP Diplococcus; Can exist as a Chained Coccus too.

Question 13

Streptococcus Pyogenes & Beta-Hemolytic Streptococcus classification?

Answer 13

GP & Chained Coccus

Question 14

What is an example of a Group B Strep species?

Answer 14

S. agalactiae

Question 15

Corynebacterium Diphtheriae classification?

Answer 15

Small, GP Bacillus

Question 16

Clostridium Difficile classification?

Answer 16

Large, Spore-Forming GP Bacillus

Question 17

Lactobacillus Acidophilus classification?

Answer 17

Large, Nonspore-Forming GP Bacillus

Question 18

Neisseria Meningitidis / Gonorrhoeae classification?

Answer 18

GN Cocci

Question 19

Escherichia Coli / Klebsiella Pneumoniae / Enterobacter species classification?

Answer 19

GN Bacilli; Lactose Fermenters & Oxidase Negative

Question 20

Pseudomonas Aeruginosa classification?

Answer 20

GN Bacilli; Non-Lactose Fermenters & Oxidase Positive

Question 21

Haemophilus Influenzae / Moraxella Catarrhalis classification?

Answer 21

GN Coccobacilli