PPT-CE TAG LIPIDS hydrophobic or amphipathic small molecules

What are the main classes of lipids Where are they found in the cell Where did they come from Lipids Classes Fatty acids Free toxic unless esterified Esterifed in glycerophospholipids. Food provides your body with materials to grow and repair tissues. It provides energy for everything you do.. Your body breaks down the food you eat into nutrients it can use. . Nutrients. are the substances in food that provide the raw materials and energy the body needs to carry out life processes.. Lipids . do not form true polymers. The unifying feature of lipids is having little or no affinity for water. Lipids are hydrophobic because they consist mostly . of hydrocarbons, which form nonpolar covalent bonds. long term energy storage. concentrated energy. Lipids . Lipids are composed of C, H, O. long hydrocarbon chains (H-C). . “Family groups”. fats. phospholipids. steroids. Do not form polymers. big molecules. Nature’s flavor enhancer. lipids vs carbohydrates. - . both . Contain: carbon. , hydrogen, and . oxygen. LIPIDS do not:. dissolve in water. provide structure to food products. lipids. Food Examples: . . properties & interactions. Daley & . Daley. Chapter . 4:. Physical Properties. 4.1 Physical properties of organic molecules. Solids, liquids & gases. Melting point. Boiling point. Must: Be able to explain the terms hydrophilic and hydrophobic. Should: Be able to compare the properties of methane and water. Could: Be able to explain the differences in the properties of methane and water. amphiphilic. lipids in water. Polar head groups. Hydrophobic tails. The shape of the lipid determines the structural features of the . aggregate. P. acking at bilayer edges is crowded, so bilayers merge their edges to form vesicles. is a Generic term for the 20 Carbon related compounds like:. Prostaglandins (PGs). Prostacyclins (PGI2). Thromboxanes (TX). Leukotrienes (LT). Lipoxins (LX). Resolvins. Eoxins. Biosynthesis Of Eicosanoids. Cholesterol. Rich in hydrocarbon. Polar group (usually small). Oleic acid. Lipids serve a wide variety of functions. Vitamin K. Surfactants. Protection. Membrane. components. Insulation. Energy storage. Initial adsorption of the micelle to the membrane (left panel). A snapshot of the micelle-membrane complex at the beginning of fusion that has hydrophobic molecules present in the contact region (middle panel). A snapshot of a stalk structure (right panel). Stalk formation is the irreversible step in fusion. . They are insoluble in water and highly soluble in one or more of the following solvents: ether, chloroform, benzene and acetone. . Make up about 5% from organic substances which enter in the structure of living cell .. hydration shells — the layers of water mol - ecules that surround the solutes — have been a topic of debate for almost 70 years. On page582 of this issue, Davis etal present an inv are a diverse group of compounds that are insoluble in water but soluble in organic solvents such as ethanol.. The most common types of lipid are . triglycerides. (sometimes known as true fats or neutral fats), but other important lipids include waxes, steroids and cholesterol.. Scissors. Coloured pens (optional). Students will need subject revision lists/exercise books. . . . HOW TO. REVISE. FLASH CARDS. TIPS AND TRICKS TO HELP YOU LEARN HOW TO REVISE. PASSIVE VS ACTIVE. Reading notes and highlighting key information make...