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what are the 3 characteristics of microorganism?
- movement: fast or slow
- reproduction: either sexual or asexual
- mutation: changing of genetic code in response to environment
- *require food to function and waste to be excreted
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eukaryotic vs prokaryotic
- eukaryotic: contains nucleus, protoplast, cytoplast and membrane composed of phospholipids. ex) fungi, yeast, helminth
- prokaryotic: contains DNA molecules without nucleus. ex) bacteria, cyanobacteria
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what are the types of bacteria
- mutualist/beneficial: benefits us, necessary for our survival
- commensalist: uses us w/o harming us. ex) oral cavity
- parasitic: uses us and harms us, problematic
- opportunistic: commensal, but when immunocompromised will become parasitic
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what are the groups of microorganisms
- prokaryotic
- eukaryotic
- noncellular: no cytoplast, no cytoplasm. ex) viruses with either DNA or RNA in nucleus, enclosed by capsule
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catabolism vs anabolism
- catabolism: breaking large molecule into monomers
- anabolism: producing large molecules from smaller molecules. Ex) yeast metabolizing glucose
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2 categories of microorganisms when taking in matter
- photoautotroph "self feeder": plants, cyanobacteria
- hetertroph "other feeder": usually lipase positve or lactose positive. takes in fat
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