CHEM 181 Lecture Notes - Lecture 4: Great Molasses Flood, Inverted Sugar Syrup, Digestive Enzyme

• School: McGill University
• Department: Chemistry
• Course: CHEM 181
• Professor: Ariel Fenster

Document Summary

Only a small number of atoms in macronutrients: Proper amounts rda based on ~2000 calorie diet (varies per person) Changing american diet eating more added fats, cooling oils. Sucrose = typical sugar (lots of oh groups 8) water soluble. C12h22o11 (normal) // c12(h20)11 (carbo carbon hydrate water) Glucose molecule + fructose molecule (oxygen atom binds in middle) Energy + h20 + co2 (plants-->) -> carbs + o2 = glucose. Glucose is then re-consumed giving back water and co2 in cyclic process. Stereochemistry order of atoms on molecule is determinant of identity. Tetrahedron structure allows for bonding with other atoms. Glucose can be constructed by combining number of similar atoms. Glucose has a 6-membered ring with 1 oxygen and 5 carbons atoms. Different placement of the oh groups (or atoms) on structure would result in a different molecule entirely (what is up" or down") Glucose (starch) linked differently than cellulose (which we cannot digest)