PPT-Amino acids: Chemical and Physical Properties

Debalina Mukhopadhyay Containing carbon hydrogen nitrogen oxygen Building blocks of protein Contain Amino group NH2 carboxyl group COO Alkyl group R H alpha carbon contains the functional groups. (Foundation Block). Dr. Ahmed Mujamammi. Dr. . Sumbul. . Fatma. Learning outcomes. What are the amino acids?. General structure.. Classification of amino acids.. Optical properties.. Amino acid configuration.. THE EXCRETION OF AMMONIUM IONS. A part of NH4+ that is formed in the degradation of amino acids is used for the biosynthesis of nitrogen compounds. In most of the land living vertebrates the excess NH4+ is converted in urea and in that form is excreted. In birds and reptiles it is converted into uric acid and in aquatic animals it is directly excreted as urea.. B.2. Properties of 2-amino acids . (B.2.2). Zwitterion. (dipolar) . amino acids contain both acidic and basic groups in the same molecule . therefore, are . amphoteric. in nature (capable of behaving as acids or bases). When an amino acid with positive and negative charges is overall neutral in charge, it is said to be at its . isoelectric point (. pI. ). .. . Ball-and-stick model of glycine at its . pI. of 6.0.. Subunits (building blocks) of peptides and proteins. Neurotransmitters. Metabolic intermediates. glutamate. γ. -. aminobutyric. acid. (GABA). Proteins are synthesized from 20 ‘standard’ . α. -amino acids. Their names have 3- and 1-letter abbreviations.. S8P1d. Distinguish between physical and chemical properties of matter as physical (i.e., density, melting point, boiling point) or chemical (i.e., reactivity, combustibility) How are physical and chemical properties different? 1. . Overview. The catabolism of the amino acids involves:. Removal of α-amino groups. . Breakdown of the resulting carbon skeletons.. The resulting compounds will be used to form seven intermediate products: . Proteins. TextBook. : . HARPERS . REVIEW OF BIOCHEMISTRY. Anatomy of an amino acid. . -Amino acids. A. Example. (glycine). 2-aminoethanic acid. (alanine). 2-aminopropanoic acid. (aspartic acid). 2-aminobutane-1,4-dioic acid. 6. 6.1 Differentiate . between essential amino acids and nonessential amino acids.. 6.2 List . the functions of protein in the body.. 6.3 List . the steps for protein digestion and absorption in the body. . Protein. Builds and repairs body tissue. Provides some energy. There are 4 calories per gram of protein. Protein. Composed of chains of amino acids. Common Amino Acids. Alanine. Glycine. Isoleucine. Leucine. backbone.  . atoms . (see aminoAcids1).  but a unique set of . side chain . atoms. It's the side chains that make the 20 amino acids different from each other. . 1. Use the three identical backbone pieces and three unique side chain pieces below to construct three amino acids in the space to the right.. u. sing paper chromatography. Kate Andrews. Lorraine Bruce. Unit 1 DNA and the Genome. 3 Control of gene expression. Separation and identification of amino acids using paper chromatography.. Cells and Proteins. BSc 3. rd. year . AMINO ACIDS. C. lassification of amino acids . Classification according to nature of side chain. PREPARATION OF AMINO ACIDS. 1. Gabriel Phthalimide synthesis. 2. Strecker’s synthesis. Proteins. Part I. Dr. Ravish Chauhan. Associate Professor. IGN College, Ladwa. . . Amino Acids. . These are the compounds which contain both amino and carboxylic group.