Infectious Diseases - Bacteria Overview

Question 1

What type of organisms are bacteria?

Answer 1

Prokaryotes - no nucleus or organelles

Question 2

How do bacteria reproduce?

Answer 2

Through binary fission

Question 3

Bacteria contain ____

Answer 3

Plasmids

Question 4

What do plasmids do?

Answer 4

Confer antibiotic resistance and other traits

Question 5

What are the 4 steps for Gram staining?

Answer 5

1. Crystal violet dye
2. Iodine traps dye
3. Alcohol decolorizes
4. Safranin (counterstrain)

Question 6

Gram (+) bacteria stains?

Answer 6

PURPLE

Question 7

Purple bacteria indicates?

Answer 7

Gram (+)

Question 8

Gram (-) bacteria stains?

Answer 8

RED

Question 9

Red bacteria indicates?

Answer 9

Gram (-)

Question 10

Gram (+) bacteria has a ____ peptidoglycan wall

Answer 10

Thick

Question 11

Gram (-) bacteria has a ____ peptidoglycan wall

Answer 11

Thin

Question 12

What causes Gram (-) bacteria to lose the crystal violet dye?

Answer 12

Lipid A endotoxin and lipopolysaccharides on surface

Question 13

What are the gram stain exceptions?

Answer 13

Gram variable bacteria

Acid Fast Bacilli

Question 14

Cocci

Answer 14

Spherical shaped

Question 15

Dipolococci

Answer 15

2 spheres

Question 16

Streptococci

Answer 16

Chain of spheres

Question 17

Staphylococci

Answer 17

Cluster of spheres

Question 18

Bacilli

Answer 18

Rod shaped

Question 19

Diplobacili

Answer 19

2 rods

Question 20

Streptobacilli

Answer 20

Chain of rods

Question 21

Bacilli can contain?

Answer 21

Spores

Question 22

Bacilli can also be what shaped?

Answer 22

Club shaped rods

Question 23

Spirochete

Answer 23

Helical shaped

Question 24

Spirilla

Answer 24

S shaped

Question 25

Vibrio

Answer 25

Comma shaped

Question 26

Filamentous

Answer 26

Thread-like

Question 27

Pleomorphic

Answer 27

No particular shape

Question 28

Coccobacillus

Answer 28

Ovoid shape

Question 29

Attributes of a Gram Stain test?

Answer 29

Cheap

Rapidly detects presence and general type of bacteria

Question 30

Attributes of a Culture test?

Answer 30

SLOW

Aerobic and Anaerobic cultures

Question 31

Attributes of a Molecular Technique?

Answer 31

Expensive

Sensitive and Specific test!

Question 32

Attributes of Serology?

Answer 32

Detects antibody positivity for organisms that do not culture well

Question 33

What are the 4 steps to Gram Staining?

Answer 33

1. Crystal Violet Dye
2. Iodine traps dye
3. Alcohol decolorizes
4. Safranin (counterstrain)