Week 2 - Bios 242 Exam Questions (155 Terms) With Verified Definitions Updated 2024

temperature {Ans: affects 3D structure of proteins}low temperature {Ans: membranes become rigid and fragile}log phase {Ans: rapid chromosome replication, growth, and reproduction - more are growing than they are dying}Carl Woese {Ans: compared the ribosomal RNA of microoganisms and developed the three domains}aerotolerant anaerobes {Ans: do not use aerobic metabolism, but tolerate oxygen by having some of the enzymes that detoxify oxygen in poisonous forms}staining for electron microscopy {Ans: chemicals containing heavy metals (usually lead or carbon) which gives the sample one uniform charge}heterotrophs {Ans: catabolize organic molecules (proteins, carbs, amino acids, fatty acids) they acquire from other organisms}physical effects of water {Ans: microbes require water to dissolve enzymes and nutrients (most cells die in abcense of water)}anabolism {Ans: building up}binomial nomenclature {Ans: A system for giving each organism a two-word scientific name that consists of the genus name followed by the species name}colony-forming unit (CFU) {Ans: The progenitor from which a particular pure culture is derived may be either a single cell or a group of related cells}coarse focusing knob {Ans: moves the stage up and down to focus the image}differential interference contrast microscopes {Ans: significantly