BIOL240 Lecture Notes - Lecture 4: David Suzuki, Ftsz, Disaccharide
13 Mar 2017
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Document Summary
What does a cell need to grow: needs energy from chemicals or light (catabolic process, used for, motility, transport of nutrients, biosynthesis, transformation of chemicals results in waste products which are excreted from the cell. Waste products are nutrients for other cells: nutrients are taken in by the cell and used for the biosynthetic processes of the cell (anabolic process, these two processes are linked. Energy classes of microorganisms: phototrophs: use light as energy, chemotrophs , chemoorganotrophs: use organic chemicals as energy, chemolithotrophs: use inorganic chemicals as energy. Culture media: defined media and complex media, define: made from purified chemicals for which the exact nature is known, eg. Is very good at making cell components that it requires for growth from the basic building blocks: complex: exact chemical composition is unknown, eg. Allows growth for both e. coli and l. mesenteroides.
