BIOL 112 Lecture Notes - Lecture 6: Beeswax, Triglyceride, Cortisol

• School: McGill University
• Department: Biology
• Course: BIOL 112
• Professor: Lucy- Ann Joseph

Document Summary

The general formula for a carb monomer is multiples of ch2o. Occur whenever a carbon has 4 different atoms or groups attached to it. Covalent bond between c1 of one sugar with any oh group of the second sugar. (1,4) linkage gives rise to maltose, therefore starch bent. (1,4) linkage - gives rise to cellobiose, therefore cellulose straight bc alternating glucose are 180 degree turns to each other, allowing for easy h bonding, therefore stable. Hormones and vitamins (steroids and modified fatty acids) Ex. cholesterol, vitamin a, vitamin d, cortisol, testosterone lipid composed of 4 fused carbon rings hydrophobic, nonpolar, insoluble in h2o. A and d are added to milk bc lipid soluble. Cholesterol is a precursor for synthesis of all steroids. Carboxyl group attached to long hydrocarbon tail (hydrophobic) Triglyceride = 1 glycerol linked by ester linkages to 3 fatty acids. Have 2 hydrophobic fatty acids (tails) and 1 hydrophillic head attached to a glycerol.