MCB 2004C Study Guide - Quiz Guide: Louis Pasteur, Intracellular Parasite, Abiogenesis
Document Summary
The study of organisms too small to be seen by the naked eye: cellular vs. acellular microbes. Acellular: infectious particles lacking cellular organization, not delimited by cytoplasmic membrane. Cannot be seen by light microscope. (ex: prions, viroid, and viruses) Eukaryotes: algae, fungi, and protozoa: define, pathogen: disease causing microorganisms. They can be free living and can cause opportunistic pathogens: saprotrophs: decomposers; an organism that lives on dead or decaying organic matter, obligate intracellular pathogen: organisms that can survive and multiply only within living host cells. (ex. Viruses, rickettsia, chlamydia: fastidious pathogen: meaning fussy, which are microbes having complex and demanding nutritional requirements, differentiate between infectious diseases and microbial intoxication. Microbial intoxication: ingesting a toxin: know the following scientists, anton van leewenhoek. Developed the first microscope (single lens 250x) Disproved abiogenesis (something must come from something) Organisms oxygen experiment (aerobe= oxygen, anaerobe=no oxygen) Developed pasteurization, which is used to kill pathogens in many types of liquids: robert koch.
