Bah Gram Positive Cocci

Front 1

What are the three classes of bacteria based upon gram stain?

Back 1

1. Gram positive - has a much thicker cell wall, which traps the gram stain
2. Gram Negative
3. Does Not Stain - atypical bacterial form

Front 2

What are the classes of bacteria based upon shape?

Back 2

1. Round = Cocci
2. Rod = Baccilli
3. Spiral = Spirochete (oral spirochetes = treponemas)

Front 3

What is an oral spirochete important in periodontal disease?

Back 3

Treponemas

Front 4

What type of bacteria can grow in air, using oxygen in respiratory chain?

Back 4

Aerobe

Front 5

What type of bactera are sensitive to oxygen, canNOT grow in air, use other things to be electron receptors during respiration (electron chain)?

Back 5

Anaerobes

Front 6

What type of bacteria can tolerate a little bit of air, but prefer anaerobic conditions?

Back 6

Microphilic

Front 7

What type of bacteria are very tolerant and can grow with or without air?

Back 7

Facultative

Front 8

T/F
All bacilli are spore forming

Back 8

False
Most bacilli are NOT spore forming.
anthrax and clostridium are the exception.

Front 9

What type of bacteria can grow in air, using oxygen in respiratory chain?

Back 9

Aerobe

Front 10

What type of bactera are sensitive to oxygen, canNOT grow in air, use other things to be electron receptors during respiration (electron chain)?

Back 10

Anaerobes

Front 11

What type of bacteria can tolerate a little bit of air, but prefer anaerobic conditions?

Back 11

Microphilic

Front 12

What type of bacteria are very tolerant and can grow with or without air?

Back 12

Facultative

Front 13

T/F
All bacilli are spore forming

Back 13

False
Most bacilli are NOT spore forming.
anthrax and clostridium are the exception.

Front 14

Which Gram Positive Cocci is coagulase positve?

Back 14

Staph Aureus

Front 15

T/F
The enzymes coagulase and protein A produced from Gram Positive Staph Aureus are NOT involved in causing disease.

Back 15

True
Coagulase and Protein A are enzymes produced from staph aureus

Front 16

What is the disease activity that Cytotoxins (α, β, γ, ∂) cause?

Back 16

Cell Lysis

Front 17

What are the different toxins that Staph Aureus produces that cause disease?

Back 17

Cytotoxins(α, β, γ, ∂)
Leucocidin
Epidermolytic Toxin
TSS Toxin
Enterotoxin (A-E)

Front 18

What is the disease activity produced by Leucocidins from Staph Aureus?

Back 18

Kills Leucocytes

Front 19

What is the disease activity produced by Epidermolytic Toxin from Staph Aureus?

Back 19

Exfoliation and splitting of epidermis

Front 20

What is the disease activity produced by TSS Toxin from Staph Aureus?

Back 20

Shock, rash, desquamation

Front 21

What is the disease activity produced by Enterotoxins (A-E) from Staph Aureus?

Back 21

Induces vomiting and diarrhea

Front 22

What is the disease activity produced by Enterotoxins (A-E) from Staph Aureus?

Back 22

Induces vomiting and diarrhea

Front 23

Which Gram Positive Cocci species is statistically associated with urinary infection in young women?

Back 23

S. Saprophyticus

Front 24

Which Gram Positive Cocci produce surface slime when colonizing catheters?

Back 24

S. Epidermidis

Front 25

Which Gram Positive Cocci causes faruncles to form?

Back 25

S. Aureus

Front 26

Which Gram Positive Cocci is known for catherter colonization?

Back 26

S. Aureus
S. Epidermidis
S. Saprophyticus

Front 27

Which Gram Positive Cocci likes to hang out in the Anterior Nares and Perineum?

Back 27

S. Aureus

Front 28

Which Gram Positive Cocci likes to hang out in the Anterior Nares and Skin?

Back 28

S. Epidermidis

Front 29

Which Gram Positive Cocci likes to hang out in the Urinary Tract?

Back 29

S. Saprophyticus

Front 30

Which Gram Positive Cocci is known for its exotoxin production?

Back 30

S. Aureus

Including exfoliating pyrogenic and toxin superantigens

Front 31

What portion of an antibody does protein A bind to?

Back 31

Fc portion of the antibody

Front 32

How does Staph Aureus evade the immune system?

Back 32

Protein A binds to Fc instead of Fab, so macrophages don't identify the invader

Front 33

How is Staph Aureus identified, using Protein A?

Back 33

Protein A makes Staph Aureus antiphagocytic, so latex particles coated with IgG will undergo visible agglutination

Front 34

What does Coagulase enzyme secreted from Staph Aureus do?

Back 34

Clots Plasma

Front 35

How do you perform a coagulase test?

Back 35

Take bacteria and incubate it with human serum. If the liquid remains clear, no coagulase is present

Front 36

What makes an intracellular pathogen?

Back 36

Must enter the host cell

Front 37

What makes an extracellular pathogen?

Back 37

Bacteria that secrete toxins, such as TSS Toxin from Staph Aureus

Front 38

What are two different outcomes of bacteriophage typing?

Back 38

Some types will integrate into chromosomes and do not kill

Some types kill their host bacteria and you will get a clear zone on the plate

Front 39

How is bacteriophage typing performed?

Back 39

You stick all types of phages into different reservoirs on the plate and see which ones the bacteria is susceptible to. You can compare the effects to another bacteria to see if they are the same strain

Front 40

What is a bacteriophage?

Back 40

A VIRUS that infects bacteria