Week 1 - Bios 242 Study Guide Rated A+

Semmelweis and Snow {Ans: Infection control and epidemiology}coccobacillus {Ans: circular but also long (has a line down center)}growth {Ans: increase in size (does not occur in viruses)}reproduction {Ans: increase in number}phototrophic bacteria groups {Ans: -blue-green bacteria (cyanobacteria) -green sulfur bacteria -green nonsulfur bacteria -purple sulfur bacteria -purple nonsulfur bacteria}Boiled the meat that way if there was any microorganisms they would be killed with the heat {Ans: Why did Needham use gravy?}endosymbiotic theory {Ans: -eukaryotes formed from union of small aerobic prokaryotes with larger anaerobic prokaryotes -smaller prokaryotes become internal parasites (parasites lost ability to exist independently, larger cell becomes dependent on parasites for aerobic ATP production)}monotrichous {Ans: single flagella from one end}deeply branching bacteria {Ans: Scientist's believe these organisms are similar to earliest bacteria -Autotrophic -Live in habitats similar to those thought to exist on early Earth}juice in flask is inoculated with bacteria and sealed {Ans: bacteria reproduce and acids are produced (bacteria ferment grape juice into acids)}Koch's postulates {Ans: -Suspected causative agent must be found in every case of the disease and be absent from healthy hosts -Agent must be isolated and grown outside the hose -When agent