F13 8 Taxonomy and Symbiosis Concepts(2)

Symbiosis terms concepts microbial culture enrichment

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Unformatted text preview: UTRITION, ECT). Symbiosis Terms & Concepts Microbial Culture & Enrichment Disease LD50 CAN BE USED WITH TOXINS, ECT; TAKE ANIMAL, INFECT IT, SEE IF IT CAUSES DISEASE. DISRUPTED STATE OF HOMEOSTASIS THE STUDY OF DISEASE, IT CAN BE HOW DISEASE Pathology CAME ABOUT, RESULT OF DISEASE, ECT. DISEASE; PATHOGENIC PathogenicCAUSINGINFECTION/DISEASE. ORGANISM CAUSES LD50: DOSE THAT KILLS 50% OF TEST ANIMAL HIGH VIRULENCE: MORE DEATHS Infectious disease Virulence (virulent/avirlulent strains) – Virulence factors • Hemolysins: Alpha, beta & gamma • Hyaluronidase VIRULENCE: HOW PATHOGENIC AN ORGANISM IS; IF VIRULENT, IT HAS A PROPENSITY TO CAUSE DISEASE. AVIRULENT=DOES NOT CAUSE DISEASE. Inoculation Size 101 101.5 102 9/10 102.5 10 3 103.5 10/10 10/10 10/10 104 104.5 10/10 10/10 105 105.5 10 6 S. pyogenes 2/10* 6/10 10/10 10/10 10/10 S. Typhmurium 0/10 0/10 0/10 1/10 3/10 5/10 7/10 9/10 10/10 10/10 10/10 _____________________________________________________________________ * number of deaths / number inoculated WHY CHOOSE LD50 O...
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This document was uploaded on 02/25/2014 for the course MICROBIOLO 101 at San Jose State University .

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