Microbiology Flashcards

Zoonotic Infections

Cholera Microbe – Vibrio choleraeAnimal reservoir – shellfishSpread – T; water/food CJD Microbe – prionAnimal reservoir – cattle/humansSpread – T; food/cannibalism Dengue Microbe – FlaviviridaeAnimal reservoir – monkeys/humansSpread – V; mosquito – Aedes Ebola Microbe – FiloviridaeAnimal reservoir – batsSpread – T; body fluids Hanta Microbe – BunyaviridaeAnimal reservoir – rodentsSpread – T; airborne Plague […]

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Zoonoses – Microbiology

Rhabdovirus -disease -vector -incubation -clinical manifestation -diagnosis -treatment -notes Disease: rabies Vector: infected animals esp. racoons, skunks, bats, and foxes Incubation: 10 days – many years but typically 3-7 weeks Clinical manifestation: –Prodrome   ~fever, malaise, nausea/vomit, skin sensitive to temp, pain at site of bite even after healing –CNS phase   ~paresthesia, hydrophobia, rage […]

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ZOO4232-EXAM 1

Since Pathogenic Parasites rely on their hosts for survival, the population dynamics of the parasite are influenced by the population dynamics of the hosts. The host population will likely contain which of the following? a. individuals who are susceptibleb. individuals who are infectedc. individuals who have been infected but have never recovered *d. all of […]

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zChapter 12 Clinical Bacteriology

S. aureus skin, subcutaneous infections, bacteremia,endocarditis, toxic shock, food poisoning catalase +, facultative anaerobes S. epidermidis opportunistic, nosocomial infectionsnormal skin flora and an opportunist that causes endocarditis of artificial heart valves catalase +, facultative anaerobes Streptococcus pyogenes ?-hemolytic Streptococcus agalactiae Group BBeta hemolyticNormal flora of GI urogenital tractsInfection acquired in utero at birthNeonatal bacteremia, pneumonia, […]

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z- Ch. 2 Nucleic Acids

Polypeptide Non-repetitive polymer Carbohydrates homopolymers or non-repetitive heteropolymers What is nature of genetic material? Chromosomes made of nucleic acids and proteins.Originally assumed genes would be composed of amino acids because it was thought that they appeared to be the only biomolecules with sufficient complexity to convey genetic information.Idea of DNA as genetic material emerged from […]

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z-MicroBio Final – Ch. 29, 30

Virulence of Microorganisms -vs- Resistance of Host Virulence:InvasivenessToxigenicityResistance:Acquired or Induced Immunity (Resistance)Humoral Immunity: mediated by antibodiesCellular Immunity: mediated by cells (T cells)Natural Resistance: (Innate immunity)Cells: macrophages, etc.Mechanical barriers: skin & mucous membranesChemical factors: intereferons, fatty acids on skinMicrobial factors Innate Immunity (Natural Resistance)Non-Specific Mechanical Barriers, Chemical factors, Microbial factors, Cellular factors[image] Mechanical Barriers Skin: very […]

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z-MicroBio Final – Ch. 21

Mutualism both host and microbe benefit Commensalism microbe causes no damage to host Pathogenic relationship microbe causes damage to host Normal Flora microorganisms normally found in or on the body that typically do not cause disease Synergistically capable of working together; two microorganisms are synergistic if they are able to produce a host response greater […]

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Y2 2013 Spring Microbiology Block II

What is the primary causative agent of tooth decay? Streptococcus mutans What causes cariogenic dental plaques? Mouth acidity What is periodontal disease? Inflammation of the gums in response to plaque bacteria such as in dental calculus or gingivitis Responsible for tooth loss in the elderly What causes gingivitis? Porphyromonas gingivalis What causes trench mouth? Synergistic […]

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WSU Lab Exam

Microorganism any living organism that must be examined with a microscope Ocular Magnifying lens usually 10X Body Tube mirrors/prisms to make image Objective lens magnify the speciment (10X, 40X, 100X) Stage platform that holds slide Mechanical Stage allows slide to be moved on the stage Coarse Knob focuses in 10X and 40X Fine Knob Focuses […]

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World of Viruses: Midterm

5′ cap A cap on the 5′ end of mRNAs. Discovered by A.J. Shatkin and B. Moss in 1975. Important for translation. ?X174 An ssDNA virus with a circular genome. A.E. Smith In 1984, discovered nuclear localization signals. A.J. Shatkin and B. Moss In 1975, discovered 5′ caps of mRNAs in reovirus and vaccinia virus. […]

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World of Viruses: Final

5′ cap dependent transcription Transcription of influenza -RNA into mRNA. Occurs in the nucleus. A 5′ cap sequence of host mRNA aligns with the 3′ end of the -RNA, and RNA polymerase cleaves the -RNA, leaving 11 – 13 nucleotides at teh 5′ end of the host RNA. Two nucleotides at the 3′ ed of […]

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Winogradsky Column

Bacteria that fix carbon dioxide and derive their energy from the oxidation of inorganic ions are defined as what? chemolithoautotrophic Chlorobium is a member of which group of which group of bacteria? phototrophic green sulfur bacteria Name two genera of bacteria that are photoheterotrophs. Rhodobacter Rhodospirillum What very strong acid is produced by Thiobacillus when […]

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WEX 3B – Microbiology

Why is it necessary for RBs to reorganize into EBs before they are released from the host cell? EBs are the extracellular form; RBs will not survive outside the host cell How do we culture for Chlamydia trachomatis? Centrifugation enhances endocytosis into monolayer of cells, usually mouse fibroblasts (McCoy cells) then incubate 48-72 hrs at […]

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WEX 3A – Microbiology

Describe the differences in symptoms between Pontiac fever and Legionnaire’s disease. Pontiac fever is an influenza-like illness without pneumonia and Legionnaire’s disease is a severe pneumonia Which species of Nocardia typically causes chronic pulmonary disease? Nocardia asteroides Which species of Rickettsiae causes Rocky Mountain spotted fever? Rickettsiae rickettsii Which organism causes urethritis? Ureaplasma (Mycoplasma) urealyticum […]

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VVC Microbiology

Characteristics of Gram Positive Bacteria Stains Purplehas excessive layers of Peptidoclycanlow g + chigh g + c Low g + c gram positive bacteria spheres – staphylococuss, streptococuss, enterococcusRod shaped – bacillus, clostridium, listeriaPleomorphic – mycoplasmas (lack cell wall, stain pink) High g + c gram positive bacteria Rod shaped – corynebacterium, mycobacterium, propionibacteriumFilmentous – […]

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Viruses. The Final Chapters

Ivanowski Dude that coined the term “filterable virus” Tobacco Mosaic Virus (TMV) “First” virus, helical capsid Bacteriophage Virus that kills bacteria. Viroid Naked circles of RNA that attack PLANTS Prion Smallest agents of diseaseProteins, not nucleic acidsex diseases: Creutzfeldt-Jakob Disease, Bovine Spongiform Encephalitis, and Kuru Creutzfeldt-Jakob Disease, Bovine Spongiform Encephalitis, and Kuru Examples of Prion […]

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Viruses – Microbiology

viruses with 1-2 week incubation enteroviruses, polimyelitis, measles, smallpox, chickenpox, mumps, rubella viruses with 2+ weeks incubation mononucleosis, Hep-A, Hep-B, rabies, papilloma (warts), HIV Adenoviridae(genetics, symmetry, replication site, envelope or naked, members) DNA double strand Icosohedral symmetryReplicate in nucleusNakedAdenovirus Arenoviridae(genetics, symmetry, replication site, envelope or naked, members) RNA single strand (-)SphericalEnvelopeLassa fever, lymphocytic choriomeningitis virus […]

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Viruses – Microbiology Test Questions

Are viruses capable of living without a host? Why? NO. Lack metabolism What do they contain that makes them able to live once they infect a host? All the info necesarry to direct metabolic processes (DNA/RNA) What are viruses classified as? Infectious particles What are target cells? Viruses interact and infect specific cells Are there […]

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viruses – Microbiology

Early development of Virology Many Epidemics of viral diseases occured before anyone understood the nature of their causative agents   Early Attempts to prevent viral diseases                   Lady Wortley Montagu ( 1700s)- Inoculated children with material from small pox lesion, got idea from turkish women   Edward […]

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Viruses – Microbiology Questions And Answers

Adenoviruses DNACommon coldcolds and pharyngitisSneezing, runny nose, congestion, sore throat, malaise, and coughFever indicates bacterial infectionTreatment is mainly supportiveHand antisepsis is important preventive Cytomegalovirus (CMV) DNAHerpesAsymptomatic in most casesNeonates and immunodeficient individuals can have complications from CMV infectionTransmitted by direct contact with bodily secretions or across the placentaOne of the most common infections of humansTreatment: […]

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Viruses – Microbiology Answers

Viruses are composed of: DNA or RNAA protein coat Are viruses living? NO. They have no metabolism, cannot reproduce on their own, and do not respond to stimuli. How do viruses relate to gene therapy? Since viruses are built to inject DNA into a host cell, we can use them as vectors to deliver beneficial […]

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