Q/As BIOL 310- Final Exam With Complete Solutions (2025)!!Koch Postulate (1) - Answers Organism must be present in diseased host and absent in healthy individuals Koch Postulate (2) - Answers Causative organisms must be isolated and grown in pure culture Koch Postulate (3) - Answers Isolated organism must be able ti cause disease in a susceptible host Koch Postulate (4) - Answers Causative pathogen must be re- isolated and demonstrated to be identical with the original pure culture Limitation of Koch's postulates (1) - Answers Many fastidious organisms and all viruses cannot be grown In pure culture Limitation of Koch's postulates (2) - Answers Some host may have immunity to a pathogen and are therefore not susceptible https://www.stuvia.com/en-us/user/SCHOOLFLIX 1 / 2
Q/As Limitation of Koch's postulates (3) - Answers Ethical considerations may limit testing Limitation of Koch's postulates (4) - Answers Some communal microbes exist as part of a "healthy" host microflora may later become opportunistic pathogens Hypothesis for spontaneous generation - Answers Living organisms can originate from nonliving material Opponents for spontaneous generation - Answers boiling a sealed.glass flask with nutrient solutions effectively sterilized contents and prevented further contamination Proponents for spontaneous generation - Answers declared that "fresh out" was necessary for spontaneous generation to occur Structure - Answers All cells have cytoplasmic membrane, cytoplasm, a genome made up of DNA, and ribosomes What do all cells use to make RNA and protein? - Answers Information encoded in DNA What do all cells take up and transform? - Answers Nutrients
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