BIOL 2305/ 2101 Human Physiology Definition of organic compounds: Organic compounds - Biochemistry Review large, complex molecules long, chains of carbons linked by covalent bonds molecules of living organisms subject of biochemistry 4 main groups: carbohydrates lipids proteins nucleic acids high-energy compounds • Anabolism building up of large molecules inside cells • endergonic reaction: needs energy • storing energy in covalent chemical bonds Catabolism • breaking down large molecules inside cells • exergonic reaction: releases energy • energy stored in covalent bonds are released • cells use this energy for essential functions of body: growth, movement, reproduction, to maintain homeostasis or balance Ex. Body temperature Metabolism: All chemical reactions in the body. Aniko Szabo Hill MD PhD 1 of 7 BIOL 2305/ 2101 Human Physiology Organic compounds - Biochemistry Review General terminology of organic molecules monomer dimer oligomer polymer Tables of Organic Compounds Table # 1: Carbohydrates Definition: (C:H:0 = 1:2:1) or 3% of body weight Aniko Szabo Hill MD PhD C + H20 2 of 7 BIOL 2305/ 2101 Human Physiology Table # 2: Lipids or fats Organic compounds - Biochemistry Review Definition: C, H, > O, 12 % of body weight 1. Triglycerids 2. Phospholipids 3. Steroids Aniko Szabo Hill MD PhD 3 of 7 BIOL 2305/ 2101 Human Physiology Organic compounds - Biochemistry Review Table # 3: Proteins most abundant/100 000 kinds / 20 % of total body weight C, H, O, N > S Aniko Szabo Hill MD PhD 4 of 7 BIOL 2305/ 2101 Human Physiology Table # 4: Nucleic Acids Aniko Szabo Hill MD PhD Organic compounds - Biochemistry Review C, H, O, N, P 5 of 7 BIOL 2305/ 2101 Human Physiology Organic compounds - Biochemistry Review 1. Comparison of DNA & RNA structure & function in table. 2. Drawing of one RNA & one DNA molecule. Aniko Szabo Hill MD PhD 6 of 7 BIOL 2305/ 2101 Human Physiology Organic compounds - Biochemistry Review 3. Drawing & labeling of each part of an ATP molecule. 4. Explanation of how energy is stored in ATP 5. Explanation how of energy is released from ATP Aniko Szabo Hill MD PhD 7 of 7