PPT-Lipids biochemistry Definition

Lipids are hydrophobic or amphipathic small molecules that may originate entirely or in part by carbanionbased condensations of thioesters fatty acids polyketides etc andor by carbocationbased condensations of isoprene units . Dr. . Kerith. Golden. Biochemical Sciences at Mona. Department of Basic Medical Sciences. Biochemistry. Anatomy. Physiology. Pharmacology. Physical Therapy. Dentistry. Degrees offered: . BSc. , . MPhil. Dr. Huda Hania. Lipid chemistry . Lipid chemistry . Definition . Fats and Oils (triglyceride) . Waxes. Steroids. Fat- soluble vitamins. Phospholipid. Mono- di glycerides . Lipid compounds including: . Fats and Oils. Classification of Nutrients. Carbohydrates. Lipids. – . 9 calories per gram. Protein. Vitamins. Minerals. Water. LIPIDS. Most . concentrated. source of food energy. Provide . Lipid chemistry . Lipid chemistry . Definition . Fats and Oils (triglyceride) . Waxes. Steroids. Fat- soluble vitamins. Phospholipid. Mono- di glycerides . Lipid compounds including: . Classification of Lipids. 1. What is Biochemistry?. Biochemistry = chemistry of life. . Biochemists use physical and chemical principles to explain biology at the molecular level.. Basic principles of biochemistry are common to all living organism. Carbohydrates. Fancy way of saying sugar. Can be very small or very large molecules. Carbohydrates. Provide energy. Substances for structure. Carbohydrates. Saccaride. – . another word to describe sugars. nonpolar. organic compound insoluble in polar solvent , but . soluble in organic solvents. such as benzene ,ether, chloroform.. Biological role of lipids. :. Lipids are found naturally in all living organisms.. 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. Lipids & Membranes. Diversity of Lipids. Stored forms of energy. derivatives of fatty acids. oxidation is highly exergonic. Structure. h. igh heat capacity. mechanical protection (absorb shocks). 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.. Kerith. Golden. Biochemical Sciences at Mona. Department of Basic Medical Sciences. Biochemistry. Anatomy. Physiology. Pharmacology. Physical Therapy. Dentistry. Degrees offered: . BSc. , . MPhil. , PhD. Biochemistry examines the rudimentary chemistry of life. Molecular biology studies the complex interactions among biological molecules. ASBMB publishes three prestigious research journals. ASBMB's journals publish original research in the fields of microbiology, molecular genetics, RNA-related research, proteomics, genomics, transcription, peptides, cell signaling, . Lipids. : . are a group of naturally occurring substances include a diverse group of organic compounds including . fats, oils, hormones. , and certain components of membranes (. phospholipids. ). All of these substances relatively insoluble in water but soluble in organic solvents like: chloroform, ether and benzene.. are a large and diverse group of naturally occurring organic compounds that share some general . properties. .. General Properties of Lipids. Insoluble . in water.. Soluble in non-polar organic solvents .