BIOL130L Study Guide - Final Guide: Cell Plate, Ovule, Egg Cell
28 Aug 2013
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Biol 130l exam november 30, 2012: identification of some macromolecules. Positive control: designed/prepared in such a way that it should give positive results if experimental conditions were set properly and followed. Negative control: designed/prepared in such a way that it should give negative results if experimental condition were set properly and followed. Time points: time as a variable, have to have a control for every time point in experiment; zero time point control is extremely important; samples must be measured immediately after treatment, at time zero. Most abundant elements in living material: c, h, o, n, s, p. Four major biological macromolecules: carbohydrates (monosaccharaides fructose, galactose, glucose, polysaccharides), lipids, proteins, nucleic acids. Blue-black in the presence of starch and a reddish-brown in presence of glycogen. In plants, starch is the storage polysaccharide composed of multiple glucose units linked together by glycosidic bonds. In animals, glycogen is the counterpart to starch and is generally a larger polymer.
