NTR 109 Study Guide - Quiz Guide: Protein Digestibility Corrected Amino Acid Score, Muscle Hypertrophy, Portal Vein

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Amino acid structure: amino group: always has nitrogen. When the amino group is removed, the carbon skeleton is left. The amino group has to be removed for the amino acid to be degraded/broken down: a) to make urea (which is made in the liver and goes to the kidney to be excreted in the urine). Both require vitamin b6: carbon skeleton: has an r- group that makes each amino acid different. R-group is what determines is an amino acid is essential (not made by body) or nonessential: peptide bond: chemical bonds that links amino acids together to form protein. It needs to be broken down during protein digestion. Note: the structure and function of proteins are determined by their amino acid sequence which is encoded in the cellular dna. Protein is an essential nutrient because it contains essential amino acids. Essential amino acids (eaa): cannot be made by the body; therefore must be included in our diet.

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