FOOD SCI 120 Study Guide - Final Guide: Dental Caries, Sugar Acid, Glycogen
30 Oct 2014
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Document Summary
A carboxylic acid group (-cooh) and amino group (-nh2. 20 standard amino acids: 9 essential body cannot make enough. Structure: primary - carboxylic acid joins with amino group on another creating peptide bonds and releasing water, secondary link through hydrogen bonds. Beta helix folds: tertiary more folds and coils into 3d shape, quaternary individual polypeptides join to form larger molecule. Importance: growth and repair of cell and tissue, mechanical work (turns energy into mechanical work, disease prevention (immune system, controlling body process (enzymes, hormones, buffers, transports waste in and out of blood, last change source of energy. Carbon burned for energy: excess protein converted to glucose or stored as fat, weight in kg x . 8 = g/day protein. Quality: high quality (complete) supply all amino acids in proportions needed by body. Animal protein (other than gelatin: low quality (incomplete) lacks adequate amounts f one or more essential amino acids.
