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Browsing Tag microbiology

Animal Viruses – Microbiology Online Lecture

By at December 1, 2012 | 11:33 am |

Microbiology Online Notes Overview of Animal Viruses I. Viruses A. Obligate intracellular parasites of bacteria, protozoa, fungi, algae, plant, and animals B. Very small; not visible with light microscope 1. Influenza virus = 100nm or .1um 2. Streptococcus = 1000nm or 1um 3. E. coli = 2um long 4. Yeast and RBC = 7-8um 5. Macrophage = 21um C. more...

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Mechanisms of Disease – Microbiology Online Lecture

By at November 29, 2012 | 3:49 pm |

Microbiology Principles of Disease   I. Pathology – study of disease A. Etiology – cause of disease B. Pathogenesis – how disease develops C. Infection – invasion of the body by pathogen D. Disease – the structural and functional changes infection causes on the body E. Virulence – degree of pathogenicity F. True pathogen – more...

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Antibiotic Resistance – Microbiology Lecture Online

By at November 18, 2012 | 10:33 am |

Microbiology Antibiotic Resistance   I. Antibiotic Resistance A. Any large population of bacteria is likely to already have a few cells that are drug resistant. 1. Due to random mutations or transfer of plasmids B. If the drug is not present, then these resistant cells will stay few in number C. When drug is present, the few cells with the resistant more...

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Antibiotics – Microbiology Online Lecture Notes

By at November 4, 2012 | 9:20 am |

Microbiology Antibiotics Online Lecture Notes I. History of Antibiotics A. “Magic Bullet” concept (early 1900’s) 1. Paul Ehrlich proposed idea of using a drug that would selectively find and kill pathogen, but not harm human cells (early 1900’s) 2. Basis of antimicrobial chemotherapy (drug therapy)   B. Discovery of Penicillin more...

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Control Microbial Growth – Microbiology Outline Notes

By at October 22, 2012 | 5:50 pm |

Microbiology Control of Microbial Growth   I. Terminology A. Sterilization – removal or destruction of all microbial life (including endospores) B. Disinfection – destruction of pathogens; does not remove all microbial life, but decreases the numbers 1. Disinfectant – chemical used on a surface (kitchen counter) 2. Antiseptic – chemical more...

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