Medbac Course Reserve 2008 Exam

Front 1

Given a 50/50 liquid culture of Bacillus and Clostridium, how could you isolate the Bacillus from the mixture?

Back 1

a

Front 2

Given a 50/50 liquid culture of a week-old Bacillus and Pseudomonas, how could you isolate the Bacillus from the mixture?

Back 2

a

Front 3

List 2 differences between E. coli and Pseudomonas.

Back 3

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Front 4

List 2 differences between Staphylococcus and Enterococcus.

Back 4

a

Front 5

List 2 differences between Neisseria and Streptococcus.

Back 5

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Front 6

T/F? All plasmids are made of circular DNA?

Back 6

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Front 7

T/F? In AB type toxins, the B subunit binds to receptors on the surface of the human cell, thus facilitating the entry of the A subunit which causes the damage.

Back 7

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Front 8

T/F? Neisseria gonorrhoeae uses glucose only but not maltose or surcrose, while N. menigitidis uses both glucose and maltose.

Back 8

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Front 9

T/F? Streptococcus pneumoniae produces no toxins.

Back 9

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Front 10

T/F? Bacterium coli commune was one of the names suggested for Escherichia coli before it was finally named (19191).

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Front 11

T/F? The T in DPT stands for tetanus.

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Front 12

T/F? The causative bacterium of Lyme disease is the tick, Ixodes.

Back 12

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Front 13

T/F? The Shiga toxin kills cells by inactivating the hose 60S ribosomes.

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Front 14

T/F? Tetanus toxin, Botulinum toxin, and Listeriolysin are all neurotoxins.

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Front 15

T/F? Lipid A is the biologically active component of endotoxin.

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Front 16

T/F? Streptococcus saprophyticus causes urinary tract infections.

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Front 17

T/F? GAS infection of the superficial layer of skin causes crusty lesions called impetigo.

Back 17

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Front 18

T/F? Moraxella is a Gram negative diplococcus.

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Front 19

T/F? OPEC causes watery diarrhea in infants less that one year of age.

Back 19

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Front 20

T/F? The site of action of dysentery is the large intestine.

Back 20

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Front 21

T/F? E. coli o157:H7 can be distinguished from harmless E. coli k12 by its ability to ferment sorbitol.

Back 21

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Front 22

T/F? Alginate is a virulence factor in Pseudomonas aeruginosa that is involved in biofilm formation.

Back 22

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Front 23

T/F? Pseudomonas has three kinds of motility, namely swimming, swarming, and twitching including the usual flagella.

Back 23

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Front 24

T/F? Chlamydia difficile causes pseudomembranous colitis in patients who have been on longterm antibiotic treatment.

Back 24

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Front 25

An infant was admitted to Childrens Hospital in Dallas with bacterial meningitis. On examination of a Gram stain, no Gram-negative diplococci were seen, only Gram positive diplococci. What's up Doc? The Gram stain was done perfectly?

Back 25

a

Front 26

Mycoplasma is unique because:
1.
2.
3.
4.

Back 26

1:
2:
3:
4:

Front 27

List four different exotoxins and tell what they do.
1:
2:
3:
4:

Back 27

1:
2:
3:
4:

Front 28

List 4 bacteria you might expect on an old tooth brush.
1:
2:
3:
4:

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1:
2:
3:
4:

Front 29

What did Barry Marshall and Robin Warren do?

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Front 30

Causitive organism of relapsing fever.

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Front 31

The obligate intracellular parasite that cause Q fever.

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Front 32

A bacterium that causes PID.

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Front 33

This bacterium infects up to 1/3 of the world's population.

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Front 34

Rocky Mountain Spotted Fever is caused by this obligate anaerobe.

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Front 35

A Gram positive rod, endospore forming strict anaerobe that causes food poisoning.

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Front 36

Conjunctivitis in cats and humas caused by this obligate parasite.

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Front 37

This bacterium is the prime cause of stomach ulcers.

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Front 38

The enzyme that allows Helicobacter pylori to survive in the stomach.

Back 38

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Front 39

One of the faces of E. coli.

Back 39

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Front 40

One of the four Shigella species.

Back 40

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Front 41

The skin lesion in Lyme disease is called this.

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Front 42

A toxin of Bordetella pertussis.

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Front 43

Recurrent arthritis caused by this spirochete.

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Front 44

Typhoid Mary Mallon was a carrier for this pathogen.

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Front 45

One of the four antimicrobials in the TB cocktail.

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Front 46

Other than Borrelia, name another spirochete.

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Front 47

EHEC and O157:H7 cause this.

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Front 48

Gram +/-? Vibrio cholerae

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Front 49

Gram +/-? Legionella pneumophila

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Front 50

Gram +/-? Borrelia burgdorferi

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Front 51

Gram +/-? Moraxella catarrhalis

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Front 52

Gram +/-? Clostridium difficile

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Front 53

Gram +/-? Mycobacterium tuberculosis

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Front 54

Gram +/-? Cornybacterium diphtheriae

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Front 55

Gram +/-? Listeria monocytogenes

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Front 56

Gram +/-? Bacteriodes fragilis

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Front 57

Gram +/-? Fusobacterium nucleatum

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Front 58

Gram +/-? Neisseria sicca

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Front 59

Gram +/-? Burkholderia cepacia

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Front 60

Gram +/-? Bacillus thuringienisis

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Front 61

Gram +/-? Streptococcus pyogenes

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Front 62

Gram +/-? Enterococcus faecium

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Front 63

Gram +/-? Propionibacterium acnes

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Front 64

Gram +/-? Acinetobacter baumannii

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Front 65

Gram +/-? Helicobacter pylori

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Front 66

Gram +/-? Eikenella corrondens

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Front 67

Gram +/-? Shigella flexneri

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