BIOL 1116 Lecture Notes - Lecture 17: Sucrose, Cellulose, Emulsion

• School: Langara College
• Department: Biology
• Course: BIOL 1116
• Professor: jessicakalra

Document Summary

Once nutrients are inside the cells, they can be oxidized by cellular respiration to generate energy in the form of atp. There are four classes of essential nutrients: essential fatty acids. => critical for human survival: essential amino acid. => essential to everyday"s diet since they are not produced naturally by the body: essential vitamins, minerals. Those provide the vast majority of metabolic energy: carbohydrates, proteins, lipids. Carbohydrates => made of carbons, hydrogen and oxygen. Mono => single sugar; molecular formula of (ch2o)n; building blocks from creating bigger carbohydrates. Disaccharides => formed from two monosaccharides; three important disaccharides are sucrose, Proteins => made of carbon, hydrogen, oxygen and nitrogen. => made of amino acids (20 amino acids). => functions: stores energy, organ protector, temperature regulator. => insulation such as myelin that covers the nerve cells. => emulsifiers to keep fat dispersed in the body fluids. Body tends to store excess fat molecules instead of using them.