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CHM 333 – Spring 2012 Review Sheet – Exam 3 Function of Lipids Membrane Function Classes of Lipids Phospholipids (Phosphoacylglycerol) Sphingolipids Non-Saponifiable Lipids/Steroids Triacylglycerols (TAGs) Membrane Transport Symporters Antiporters Uniporters Drawing/Naming Fatty Acids/Triacylglycerols Passive Transport Facilitated Diffusion Simple Diffusion Saturated vs. Unsaturated Fatty Acids Active Transport Packing/Melting Point of Fatty Acid Chains Cellular Metabolism Catabolism Anabolism Metabolic Pathways Three Stages Compartmentalization Storage Lipids (Triacylglycerols/TAGs) Adipocytes Fat Substitutes (Olestra, Trans-Fatty Acids) Cholesterol Biological Membranes Membrane Fluidity Effect of Chain Length Effects of Saturation/Unsaturation Effect of Cholesterol Lipid Bilayers Movement of Lipids & Proteins in Membranes Flippases Membrane Proteins (Integral, Peripheral) Fluid Mosaic Model Metabolic Reactions Group Transfer Hydrolysis Non-Hydrolytic Cleavage Isomerization/Rearrangement Oxidation/Reduction Bond Formation Using ATP Common Functional Groups Thioester Bonds Substrate Level Phosphorylation Oxidative Phosphorylation Thermodynamics Free Energy Spontaneity Coupling Reactions ATP Energy Currency Phosphoanhydride Bonds FAD/FADH2 = 1.5 ATP NAD+/NADH = 2.5 ATP 1 Glycolysis Degradative Cytosol Fates of Pyruvate Overall Reaction Structure (Glucose, Pyruvate) Enzymes Types and Names Regulatory Steps ATP Formation, Use Cofactors Used, Generated Investment Vs. Dividend Phase Entry of Other Carbohydrates into Glycolysis Know structures and reactions Recognize reaction types Regulation Glycogen Metabolism: Storage & Degradation 2