Abstract Enzymes are proteins that lower the activation energy needed for chemical reactions. The two main environmental factors that can affect the enzyme’s activity are temperature and pH‚ and each enzyme works best at a particular temperature and pH. The purpose of this enzyme kinetic experiment was to observe the effect of temperature and pH on the reaction of barley alpha-amylase enzyme with starch substrate and establish the optimum temperature and pH for this reaction. The optimum temperature
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INTRODUCTION Enzymes are biological catalysts that speed up chemical reactions‚ without being used up or changed. Catalase is a globular protein molecule that is found in all living cells. A globular protein is a protein with its molecules curled up into a ’ball’ shape. All enzymes have an active site. This is where another molecule(s) can bind with the enzyme. This molecule is known as the substrate. When the substrate binds with the enzyme‚ a product is produced. Enzymes are specific to their
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Chapters 6‚7 &31 Question 1 1 out of 1 points Some enzymes contain molecules in the active site that help facilitate chemical transformations. These molecules are called: Selected Answer: coenzymes. Correct Answer: coenzymes. Question 2 1 out of 1 points People with high cholesterol levels often take drugs in an attempt to lower their cholesterol levels. One such drug is Lipitor. How does this drug work? Selected Answer: It acts as a competitive
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Starch can be hydrolyzed into simpler carbohydrates by acids‚ various enzymes‚ or a combination of the two. The resulting fragments are known as dextrins. The extent of conversion is typically quantified by dextrose equivalent (DE)‚ which is roughly the fraction of the glycosidic bonds in starch that have been broken. These starch sugars are by far the most common starch based food ingredient and are used as sweetener in many drinks and foods. They include: Maltodextrin‚ a lightly hydrolyzed (DE
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Graphics and Modelling journal homepage: www.elsevier.com/locate/JMGM Genome wide analysis and comparative docking studies of new diaryl furan derivatives against human cyclooxygenase-2‚ lipoxygenase‚ thromboxane synthase and prostacyclin synthase enzymes involved in inflammatory pathway P. Nataraj Sekhar a‚ L. Ananda Reddy a‚*‚ Marc De Maeyer b‚ K. Praveen Kumar c‚ Y.S. Srinivasulu c‚ M.S.L. Sunitha a‚ I.S.N. Sphoorthi d‚ G. Jayasree d‚ V. Srikanth e‚ A. Maruthi Rao f‚ V.S. Kothekar g‚ Inder Konka
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The Effect that the Enzyme Bromelain has on the Substrate Gelatin Sarah Kunik 10-5-12 Period 2 Introduction Enzymes are proteins that are catalysts which aid in the reactions that occur in everyday life‚ everywhere. Each enzyme has a specific function to do a specific job. The molecule that an enzyme works on is called a substrate. In order for an enzyme to properly do its job‚ the substrate has to move to the active site which is the exact shape for the particular enzyme in that it binds to
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reaction is catalyzed (an increase in rate because of a present catalyst) by a specific enzyme. Enzymes are able to denature proteins‚ meaning that a protein loses its original shape by uncoiling‚ giving it a random‚ unstructured shape. The pineapple plant contains bromelain which‚ because of its unique characteristics‚ keeps gelatin from thickening into the solid‚ commonly consumed food. That bromelain contains two enzymes that have the capability to digest proteins (proteases). Gelatin receives its structure
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RESEARCH Introduction There is approximately 75‚000 enzymes that exist in the human body. Enzymes are important for fast reactions that keep you alive‚ break down large molecules into smaller molecules and use small molecules to build large complex molecules like the enzymes that make DNA and enzymes also help cells to communicate with each other. I have decided to use not one but two enzymes to observe what happens to the different kind of enzymes when introduced to different PH (power of hydrogen)
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using various enzymes and to compare with other groups the most effective way to extract DNA. Hypothesis : To be able to observe white springy substances after mixing with enzyme and alcohol. Apparatus : -Test tube‚ spatula‚ glass rod‚ dropper‚ beaker‚ test tube rack‚ skewer. Materials : - 1 egg‚ meat tenderizer‚ salt‚ water ‚ soap‚ isopropyl alcohol 91%‚ pineapple juice. Variables : Manipulated Variable : Responding Variable : Constant Variable : The different type of enzyme used. Identify
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Proteins are polymer chains made of amino acids linked together by peptide bonds. In nutrition‚ proteins are broken down in the stomach during digestion by enzymes known as proteases into smaller polypeptides to provide amino acids for the body‚ including the necessary amino acids that cannot be biosynthesized by the body itself. Biosynthesis is an enzyme-catalyzed process in cells of living organisms by which substrates are converted to more complex products. Collagen is a group of naturally occurring
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