CHEM 181 Lecture Notes - Lecture 9: Fructose, Lignin, Psyllium

• School: McGill University
• Department: Chemistry
• Course: CHEM 181
• Professor: David Noble Harpp, Ariel Fenster, Joseph A Schwarcz

Document Summary

Fats: carbon, hydrogen, oxygen, nitrogen (links amino acids together) Carbons linked to each other in long chains make up glucose molecule. ~2000 calorie diet: fat 65g/day, protein 60g/day, complex carbohydrates 240g/day, sugar. ~450g/day (result of increase) rather than 415g/day (average) Changes in diet from 1970s-2006 (usa: dairy: -20, meat/eggs: +11, sugar: +17, fruit: +26, grains: +42, fats: +59% Monosaccharides, linked in sucrose which is a disaccharides compound of the 2 monosaccharide consists of one. Energy + h2o + co2 carbohydrates + o2 (plants) Glucose: composed in same form as sucrose. Ups and downs (above or below the rough plane) constitute stereochemistry: c6 monosaccharide, if any direction of h or oh are switched, it is a different molecule. 6 carbon atoms linked (glucose: 6 membered ring with 1 oxygen and 5 carbons, oh groups attached to create glucose. What is up and what is down is extremely important for representing the molecule. Cellulose: combination of glucose molecule: cannot be digested.