BIOL130L Study Guide - Final Guide: Barium Hydroxide, Barium Sulfate, Cuvette
5 Aug 2016
School
Department
Course
Professor
Document Summary
Treatment controls: are specific samples that are used to check if the experimental results were done properly. Most abundant elements are carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus. Biological groups fall into categories of similar functional groups. Iodine turns blue-black in presence of starch and a reddish-brown in presence of glycogen. Plants and animals can store glucose in high molecular weight compounds polysaccharides. In plants, starch is the storage polysaccharide composed of glucose connected by glycosidic bonds. In animals glycogen is used and is a larger polymer in terms of molecular weight. Starch is a mixture of two polymers amylose and amylopectin. Amylose is unbranched and helical, and glucose is connected by alpha 1 4 linkages. The amylose in starch reacts with iodine. Amylopectin has straight and branched sections connected by alpha 1 6 linkages. Glycogen is similar to amylopectin but is much more branched. Basic carbohydrates are simple sugars exist as linear chains of ring forms.
