NUTR 132 Lecture Notes - Lecture 6: Concept Map, Insulin
6 Dec 2018
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Document Summary
Protein forms hormones & enzymes i. ii. iii. iv. v. Amino acids used for synthesis of many hormones. Thyroid hormones: made from only one type of amino acid, tyrosine. Insulin: hormone composed of 51 amino acids. Almost all enzymes are proteins: protein contributes to immune function. Key component of cells within immune system. i: without sufficient dietary protein, immune system lacks material needed to function properly, protein forms glucose, without enough carbohydrate, liver produces glucose from amino acids. ii. In starvation: amino acids from muscle tissue are converted into glucose, wastes muscle tissue, can produce edema, protein provides energy i. ii. iii. iv. Proteins supply little energy for a weight-stable person. Can provide energy during prolonged exercise and during weight-loss efforts. Amino group from amino acid is removed: remaining carbon skeleton is metabolized for energy. v. Increases urea production: protein contributes to satiety i. ii. Protein provides the highest feeling of satiety after a meal.
