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MMG 1
medical micro
32
Medical
Graduate
02/18/2009

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Cards

Term
What is the only infectious disease that has been eradicated to date?
Definition
Smallpox is the only disease that has been eradicated so far.
Term
What are characteristics of a Eukaryotic cell?
Definition
Eukaryotes
-membrane bound organelles
-true nucleus
-mitosis
-sexual reproduction
-cytoskeleton
-80s ribosomes
Term
What are characteristics of Prokaryotic cells?
Definition
Prokaryotes
-No nucleus (single, circular chromosome)
-NO membrane bound organelles
-cell division by binary fission
-NO cytoskeleton
-NO sexual reproduction
Term
How do Prokaryotic and Eukaryotic if flagella differ?
Definition
Prokaryotic flagella are made of one fiber of protein.

Eukaryotic flagella are made of multiple microtubules.
Term
What types of cells would you stain with Acid Fast Stain?
Definition
You would stain bacteria that have waxy material in their cell walls.
Ex. Mycobacterium

Acid-Fast bacteria stain red while others stain blue.
Term
What are some criteria for differentiation of genus and species of bacteria?
Definition
Biochemical tests, production of enzymes, molecular probes, GC content, Ab-Ag interactions
Term
Micrococcaceae
Definition
Gram + cocci in pairs and clusters. Catalase positive
Term
Streptococcaceae
Definition
Gram + cocci in pairs and chains, catalase negative
Term
Neisseriaceae
Definition
Gram - cocci, oxidase positive
Term
Bacillus
Definition
Gram +, aerobic spore forming rods
Term
Clostridium
Definition
Gram + anaerobic spore forming rods
Term
Listeria monocytogenes
Definition
Non-spore forming, gram + rods
Term
Corynebacterium diptheriae
Definition
Non-spore forming gram + rod (causes diptheria)
Term
Pseudomonadaceae
Definition
Gram - rod, non-fermenting, oxidase positive
Term
Legionellaceae
Definition
Gram - rod, non-fermenting, oxidase positive (causes Legionnaire's disease and Pontiac fever)
Term
Bordetella pertussis
Definition
Gram -, aerobic, coccobacilli (causes whooping caugh)
Term
Fransicella tularensis
Definition
Gram -, aerobic, coccobacilli (causes tularemia)
Term
Brucella abortis
Definition
Gram -, aerobic, coccobacilli (causes undulant fever)
Term
Enterobacteriaceae
Definition
Gream - rods, glucose fermenters (facultatively anaerobic), oxidase negative.

Ex. E. coli
Y. pestis
Shigella dysenteriae
Term
Vibrionaceae
Definition
Gram -, facultative anaerobe, rods, slightly curved

Ex. Vibrio cholerae
Term
Pasteurellaceae
Definition
Gram -, facultative anaerobe, coccobacilli, often pleiomorphic

Ex. Haemophilus influenza
Term
Campylobacter jejuni
Definition
An aerobic, gram - rod, microaerophilic

-> causes gastroenteritis
Term
Helicobacter pylori
Definition
Aerobic, gram -, microaerophilic

Associated with gastric ulcers
Term
Spirochaetaceae
Definition
Gram -, helical bacteria. (Spirochetes)

Ex. Treponema palidum - causes syphilis
Ex. Borrelia burgdorferi - Lyme disease
B. burgdorferi can survive w/o iron
Term
Leptospiraceae
Definition
Gram -, helical bacteria (a spirochete).
Term
Bacteroidaceae
Definition
Anaerobic, Gram - rod

Ex. Bacteroides fragilis, normal GI flora.
Term
Rickettsiaceae
Definition
Gram -, obligate intracellular pathogens

Usually zoonotic infections associated with arthropod vectors

Ex. Rickettsia prowazeckii- causes epidemic typhus
Term
Chlamydiaceae
Definition
A Gram -, obligate intracellular pathogen.

Ex. Chlamydia trachomatis- causes urethritis
Term
Mycoplasmataceae
Definition
Contains no peptidoglycan cell wall

Ex. mycoplasma pneumoniae- causes typical pneumonia
Term
Mycobacteriaceae
Definition
Acid-fast rods (stain red with Acid-Fast stain)

Ex. Mycobacterium tuberculosis
Mycobacterium leprae
Term
Nocardia asteroides
Definition
Filamentous, irregular gram + rod. Partially acid-fast, aerobic
Term
Actinomyces israelii
Definition
Filamentous, irregular gram + rod.
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