NTDT200 Lecture Notes - Lecture 5: Essential Amino Acid, Vasopressin, Sickle-Cell Disease

• School: University of Delaware
• Department: Nutrition and Dietetics
• Course: NTDT200
• Professor: leefeltd

Document Summary

Amino acids: ~20 different amino acids make up protein, differences in side groups affect size, shape, electrical charge and characteristics. Amino acid chain formation: amino acid + amino acid = dipeptide, tripeptide, polypeptide. Tertiary structure: polypeptide tangles: how long chains fold and twist into complex, tangled shapes, hydrophilic side chains face outward, hydrophobic side chains face inward, tendons: linear structures, carrier proteins: globular or spherical shapes. Quaternary structure: multiple polypeptide interactions iclicker question: which of the following refers to amino acid sequence: primary structure, secondary structure, tertiary structure, quaternary structure. Protein digestion: stomach: hcl denatures protein > digestive enzymes can attack peptide bonds, hcl converts pepsinogen (inactive) > pepsin [active] Pepsin cleaves large polypeptides into smaller polypeptides and some amino acids. Protein digestion: small intestine: proteases hydrolyze iclicker question: protein is needed for _____, antibody protection, enzyme production, fluid balance, building block for muscle, all of the above.