PPT-Enzymes Enzymes are proteins

that catalyze ie increase or decrease the rates of chemical reactions In enzymatic reactions the molecules at the beginning of the process are called substrates and they are converted into different molecules called the . BIOCHEMISTRY. 1. What is the function of enzymes in biological. . system?. . A. Enzymes act as product to create new chemical reactions.. . B. Enzymes act as catalyst to drive chemical reactions forward.. Apoenzymes. , . Holoenzyme. , . Abzymes. , . Synzyme. , . Ribozyme. , . Extremozyme. , Historical Development in . Enzymology. , . Characteristics of enzymes, Enzyme Vs Chemical Catalysts. , Enzyme mechanism & Activation Energy, Enzyme Specificity, Fischer and . Importance, Characteristics, Structure, Classification, . Denaturation. Importance. Major structural components of animal tissues. Involved in the maintenance of life processes as communication (nerves), defense (antibodies), metabolic regulation (hormones), biochemical catalysis (enzymes), and oxygen transport (hemoglobin). Proteins account for more than 50% of the dry mass of most cells. Protein functions include structural support, storage, transport, cellular communications, movement, and defense against foreign substances. 1. What are enzymes?. Each enzyme has only one specific reaction it can perform. . 2. How many different reactions can a single enzyme perform?. Yes, the same enzyme molecule can be used over and over. Most abundant molecule in cells making up 50% or more of their dry weight. Every protein has a unique structure, or shape. Allows it to perform a specific function. Enzymes are proteins that function as catalysts for many reactions in foods. Bio-Chemistry (AKA Organic Chemistry). Inorganic Compounds. : from minerals or non-living source.. Organic Compounds. : contain . Carbon. & come from a living thing.. Carbon can combine with other elements to form millions of compounds.. Each amino acid (aa) shares a common structure; i.e. an amine (NH. 2. ) group, an acid group (COOH), and a central carbon atom bonded to hydrogen and to a side chain (R).. The side chains qualify aas as acidic, basic, neutral, aromatic, and sulphur-containing amino acids.. Restriction enzymes. Polymerase enzyme. Strand-displacing polymerases. Helicase enzymes. Discovery and Obtainability:. Most enzymes are proteins discovered in cells.. But . DNAzymes. were . descovered. Enzymes. Back when we discussed proteins, we learned that one critical function of protein was to speed up chemical reactions.. Enzymes. are the proteins that increase the rate of chemical reactions. The concentration of many of these are affected by pathological processes; they are therefore measured.. They contain disulphide bonds.. Functions of plasma proteins include:. Transport. Maintaining plasma . Lecture by. :. . Dr. . Samia. . Naz. . (APWMO). Biochemistry Department, KEMU. Introduction. Proteins are the primary constituents of body. .  . These are genetically designed sequences of amino acids linked together by peptide bonds. . Today’s Objectives. Describe a general enzyme-catalyzed reaction. Discuss the relation of temperature and pH to rate of reaction in an enzyme-catalyzed reaction. Explain how chemical reactions are affected by enzymes. Carbohydrates: Bread, Pasta, Potato. Protein: Meat, Nuts, Lentils. Fats: Butter, Milk. Our body needs to digest them – turn them into a form that can be absorbed into the blood and used by cells. Enzymes make this possible..