NTDT200- Final Exam Guide - Comprehensive Notes for the exam ( 57 pages long!)

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

Document Summary

Protein: compounds composed of carbon, hydrogen, oxygen, and nitrogen atoms, arranged into amino acids linked in a chain; some amino acids also contain sulfur atoms. Peptide bond: a bond that connects the acid end of one amino acid with the amino end of another, forming a link in a protein chain. Polypeptide: many (10 or more) amino acids bonded together. The primary structure of a protein is determined by the sequence of amino acids. The secondary structure of proteins is determined by weak electrical attractions within the polypeptide chain. Ex: as positively charged hydrogens attract nearby negatively charged oxygens, sections of the polypeptide chain twist into a helix or fold into a pleated sheet. The tertiary structure of proteins occurs as long polypeptide chains twist and fold into a variety of complex, tangle shapes. Some amino acid side groups are attracted to water molecules- hydrophilic. Some amino acid side groups are repelled by water molecules- hydrophobic.