BIOL107 Lecture Notes - Lecture 12: Prnp, Exocytosis, Sucrose

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL107
• Professor: Kirstin Veugelers

Document Summary

Monosaccaried joined by a bond called glycosidic linkage (through dehydration) Enantiomer: isomers mirror images occurs when 4 different atoms/functional groups surround single carbon. Amylose = unbranched and amylopectin is the branched polymer. Cellulose: plants cell walls, used for structural support. Fibre - indigestible plant matter composed of cellulose promotes digestive health. They function as energy source, insulation and protection. Saturated pack closely together, unsaturated can"t. cis = same side as double bond (bent) and trans = opposite. (straight) hydrogenated oils = synthetically add h to make saturated. Nucleic acid monomer: nucleotide contains pentose sugar, nitrogenous base, phosphate group. Pyrimidines = 6membered c+n rings (c, t, u) Amino acids create proteins; need amino group, carboxyl group, r group (20 kinds) linked by peptide bonds. (r groups are hydrophobic) peptides are directional molecules. Folding determined by dna. it"s a snake like fold. Peptide bond into a repetitive bcooil or cold /\/\/\ like a carbon chain.