Question Set 1 1. What is a fat and how is it made? Draw a fatty acid. What makes it hydrophobic? • Fat-a biological compound consisting of three fatty acids linked to one glycerol molecule. • They are assembled from smaller molecules by dehydration reactions. • They are composed of glycerol, an alcohol with three carbons, and fatty acids, a long carbon chain carboxyl acid. • Its molecular structure, consisting of many hydrocarbons, makes it hydrophobic. 2. Why are fats the best way for animals to store energy? • Because they have to carry their energy stores with them and having a compact source of energy, such as fat, is the best way to store this energy. • The hydrocarbon chains of fats are very rich in energy. 3. How do animal and plant fats differ? • Plants are for the most part immobile, so they can function on starch, a type of polysaccharide and a bulky way to store energy. • Animals are always on the move and can’t have this bulky energy storage so their
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This note was uploaded on 03/18/2008 for the course EBIO 1210 taught by Professor Demmig-adam during the Fall '07 term at Colorado.