NUTR 3210 Study Guide - Final Guide: High-Protein Diet, Trypsin Inhibitor, Aminopeptidase

• School: University of Guelph
• Department: Nutrition
• Course: NUTR 3210
• Professor: Jim Kirkland

Document Summary

General facts: 20 or 22 aa used to make proteins, 9-10 considered essential (depending on life stage, 10-30% recommended intake (for aa requirement), 15% of body made of proteins; mainly in rbc"s, ct, and eye lens. Digestion: mouth: mechanical, lubrication, stomach: hcl secretion for protein denaturation or activating the zymogens, pepsinogen secretion to create pepsin, parapepsinogen 1+2 to make parapepsin 1+2 to form oligopeptides. Typsin (attack basic aa) chymotrypsin (attack large neutral aa"s), elastase, (attack neutral aliphatic aa) Exo: attack ends creating a mixture of different peptides. carboxypeptidase a and b (attack cooh), and amino peptidase (attack nh2) Liver tissue protein, liver enzymes, albumin and other transport proteins, peptide hormones. Excess aa degraded, nh3 going to urea cycle, carbon skeleton to energy, lipogenesis or gluconeogenesis. 1. aa balance ability to provide all of the essential acids. Grains are limiting in lysine, legumes limiting in methionine, meat/eggs closely reflect aa balance/requirements.