BIOL240 Lecture Notes - Lecture 6: Merbromin, Pasteurization, Penicillin
21 Dec 2017
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Document Summary
Physiological diversity result of 4 billion yrs of evolution. Metabolic diversity -> niche to exploit, microbe have adapted to exploit it. Anabolism putting things together, building blocks. Metabolism taking things and breaking it into bits. Microbial nutritional requirements: macronutrients (required by all cells to build macromolecules; c,n, p, s, o) and micronutrients (require by only some cells. Chemical (organic or inorganic) organo (glucose actate) or litho (h2, nh3, s0, no2-) Heterotroph fixed organic c-c bonds and autotroph gaseous inorganic (co2) Chemoorganotrops energy from oxidation of organic compounds. Phototrophs: energy from light captured by pigments. Carbon is needed for most organisms on earth. (energy storage and manipulation and structural purposes) Autotrophs primary producers, fix c directly form co2. Heterotrophs uses organic molecules produced by autotrophs. Microbes must be able to incorporate nitrogen into a usable form. Critical to make macromolecules (amino acids and nucleic acids. Nitrogen that is fixed creates ammonia and is made into glutamate.
