Scb200 Microbiology 1 Organism Characteristics

Front 1

What is the catalase reaction of genus Bacillus?

Back 1

Bacillus are catalase positive

Front 2

What are the gaseous requirements of genus Bacillus?

Back 2

Bacillus are either aerobic, or facultatively anaerobic

Front 3

Name the Gram reaction of the bacteriodes family

Back 3

Weakly Gram negative

Front 4

What is the main disease caused by Bordetella pertussis?

Back 4

Wooping cough

Front 5

What are the virulence factors of Bordetella pertussis?

Back 5

1. B. pertussis is capable of makeing a slime capsule
2. Some carriers are asymptomatic
3. Makes a toxin that disrupts the function of the cilia in the trachea

Front 6

What is the primary source of Bordetella pertussis?

Back 6

B. pertussis are mainly found in the nasal-pharyngeal cavity. Humans are the only known resevoir.

Front 7

What is the microscopial morphology of Bordetella pertussis?

Back 7

B. pertussis are cocco-bacilli

Front 8

What are the gaseous requirements of Bordetella pertussis?

Back 8

B. pertussis are obligate aerobes

Front 9

What are the media requirements of Bordetella pertussis?

Back 9

Bordetella pertussis are extremely fastidious - No media will grow all strains of them. Five medias must be used before a particular sample can be confirmed as B. pertussis negative.

Front 10

Where is Campylobacter most commonly found on?

Back 10

Chicken meat

Front 11

What are the gaseous requirements for the clostridium family?

Back 11

All clostridiums are strict anaerobes. They are mostly aerotolerant, and will survive, but not grow, in the presence of oxygen.

Front 12

What are the gaseous requirements for the clostridium family?

Back 12

Strict anaerobe

Front 13

What is the Gram reaction of the clostridium family?

Back 13

Clostridium are Gram positive, but they do go Gram variable with age.

Front 14

What is the Catalase reaction of the clostridium family?

Back 14

Clostridium are catalase negative

Front 15

What type of cell wall does the enterobacteriaceae group have?

Back 15

Enterobacteriaceae are Gram negative

Front 16

What is the Lancefield grouping reaction of enterobacteriaceae?

Back 16

Enterobacteriaceae are Lancefield group D

Front 17

What is the Gram reaction of enterococci?

Back 17

Gram positive

Front 18

What is the microscopic morphology of entrococci?

Back 18

Gram positive cocci in chains

Front 19

Are Escherichia coli motile?

Back 19

Yes, E. coli are motile

Front 20

What are the gaseous requirements for Escherichia coli?

Back 20

E. coli is facultatively anaerobic

Front 21

What is the Gram reaction of Escherichia coli?

Back 21

E. coli is Gram negative

Front 22

Is Escherichia coli a lactose fermenter?

Back 22

Yes, E. coli is a lactose fermenter

Front 23

Where is E. coli most commonly found in humans?

Back 23

E. coli is part of the normal flora of the intestines

Front 24

What are the two diseases caused by Legionella pnemophila?

Back 24

Pontiac fever and Legionnaires disease

Front 25

What are the gaseous requirements of micrococci?

Back 25

Micrococci are obligate aerobes

Front 26

What is the Gram reaction of Micrococci?

Back 26

Micrococci is Gram positive

Front 27

Where is micrococcus normally found?

Back 27

In the air. Micrococcus is totally ubiquitous

Front 28

What diseases does Moruxella Catarrahlis cause?

Back 28

Accute ear infections
Bronchopnemonial infections
Endocarditis
Meninjitis
Sinusitis

Front 29

What are the gaseous requirements of Moruxella Catarrhalis?

Back 29

M. Catarrhalis is an obligate aerobe.

Front 30

What is the microscopic morphology of Moruxella Catarahlis?

Back 30

Diplococci / coffee bean shaped.

Front 31

How is Moruxella Catarrhalis transmitted?

Back 31

Moruxella Catarrhalis is usually transmitted sexually

Front 32

What cell wall does the mycobacterium family have?

Back 32

The acid fast cell wall. A layer of wax ocer it

Front 33

What is the clinical significance of Mycobacterium leprae?

Back 33

Mycobacterium causes lepresy

Front 34

How is Mycobacterium tuberculosis transmitted?

Back 34

M. tuberculosis is spread by aerosole via coughing sneezing

Front 35

What disease does Mycobacterium tuberculosis cause?

Back 35

Tuberculosis

Front 36

What disease does Neiserria gonorrheae cause?

Back 36

Gonorrhea!

Front 37

What is the microscopic morphology of Neiserria Gonhorreae?

Back 37

N. Gonorrheae is a gonococci (coffee bean shaped diplococci)

Front 38

How is Neiserria Gonorrheae transmited?

Back 38

N. Gonorrhea is transmitted sexually

Front 39

Name the five main virulence factors of Neiserria gonorrheae

Back 39

1. Interchangable cell wall antigens - the immune system cannot develop anibodies because the antigens are always changing. Vaccines are likewise useless
2. Capable of penetrating epithelial cells and multiplying there.
3. Capable of breaking down immune system antibodies
4. Special adhesion mechanism
5. Asymptomatic carriers
And of course, they are always developing drug resistance as well!

Front 40

Are Salmonella motile?

Back 40

No, Salmonella are nonmotile

Front 41

Do Salmonella ferment lactose?

Back 41

No, Salmonella are nonlactose fermenters

Front 42

What is the Gram reaction of Salmonella?

Back 42

Salmonella are Gram negative

Front 43

What is the clinical significance of Salmonell?

Back 43

Salmonella is a major cause of food poisoning

Front 44

Is Shigella motile?

Back 44

No, Shigella is non motile

Front 45

Does Shigella produce acid from lactose?

Back 45

No, Shigella is a non-lactose fermenter

Front 46

What type of cell wall does Shigella have?

Back 46

Shigella has a Gram negative cell wall

Front 47

What is the Gram reaction of the Staphylococcus family?

Back 47

Staphylococcus are Gram positive

Front 48

What is the catalase reaction of the Staphylococcus family?

Back 48

Staphylococcus are catalase positive

Front 49

What is the DNase reaction of Staphylococcus aureus?

Back 49

Staphylococcus aureus is DNase positive

Front 50

Where is the best place to find Staphylcoccus aureus on the human body?

Back 50

Primarily in the nose, but can also in other places, such as on the skin and in the eyes.

Front 51

Name the virulence factors of Staphylococcus aureus

Back 51

1. Antiphagocytic polysaccharide capsule
2. It coagulates, then it kinases.

Front 52

What is the coagulase reaction of Staphylococcus aureus?

Back 52

Coagulase positive

Front 53

What is the DNase reaction of Staphylococcus epidermidis?

Back 53

S. epidermidis is DNase negative

Front 54

Where is the best place to find Staphylococcus epidermidis in the human body?

Back 54

On the skin

Front 55

What is the coagulase reaction of Staphylococcus epidermidis?

Back 55

Staphylococcus epidermidis is coagulase negative

Front 56

What is the microscopic morphology of Streptococcus?

Back 56

Mostly streptococcus are seen as Gram positive cocci in chains, although the chains are not seen in a colony smear.

Front 57

What is the catalase reaction of streptococci?

Back 57

Streptococci is catalase negative

Front 58

What type of cell wall do streptococci have?

Back 58

Gram positive

Front 59

What is the microscopial morphology of Streptococcus pnemoniae?

Back 59

Streptococcus pnemoniae are diplococci

Front 60

What is the clinical significance of Streptococcus pnemoniae?

Back 60

Streptococcus pnemoniae causes pnemonia

Front 61

What is the Lancefield grouping reaction of Streptococcus pyogenes?

Back 61

Streptococcus pyogenes are Lancefield group A

Front 62

What is the clinical significance of Streptococcus pyogenes?

Back 62

Streptococcus pyogenes like to cause necretizing faciitis

Front 63

What is the Gram reaction of the genus streptomyces?

Back 63

Streptomyces are Gram positive

Front 64

What are the gaseous requirements of the genus streptomyces?

Back 64

Streptomyces are aerobic

Front 65

Where are streptomyces found?

Back 65

Streptomyces are found primarily in the soil