Ashley Esparza Stallings Period 2 January 26‚ 2013 Enzyme Catalysis Lab Report Background: Enzymes are catalyst‚ which affect the rate of a chemical reaction. One consequence includes the cell to carry out complex chemical activities at relatively low temperatures. In these reactions the substrate binds reversibly to the active site. The cause of this is a decrease in the energy needed to activate the reaction of the substrate molecule to from products. Every enzyme is particular for a
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Candace S. Randolph MISEP Cohort 2 Chemistry 512 Enzyme Catalysis Lab Report Pre-lab Questions: 1. Write a balanced chemical equation with state symbols for the reaction catalyzed by peroxidase. 2H2O2 2H2O + O2 (4H1 4O) (4H + 2O + 2O) 2. What is the substrate(s) of this reaction? What is the catalyst? Substrate = H2O2 hydrogen peroxide Catalyst = peroxide 3. At what approximate temperature do enzymes normally operate in the body of a warm-blooded animal? Would your answer change if the enzyme
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Rajiv Gandhi Institute of Petroleum Technology Catalysis in Hydrotreating and Hydrocracking
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Application of Semiconductor Nanomaterials in Catalysis and Medical Sciences A Scientific Document submitted to National Center for Catalysis Research Indian Institute of Technology‚ Chennai for 10th Catalysis orientation programme-2009 By N.THILLAI SIVAKUMAR [pic] Discipline of Inorganic Materials and Catalysis Central Salt and Marine Chemicals Research Institute Council of Scientific and Industrial Research (CSIR) GB Marg‚ Bhavnagar – 364 002 Gujarat‚ India CONTENTS
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Part I - Introduction Enzymes are proteins that act as catalysts to regulate metabolism by selectively speeding up chemical reactions in the cell without being consumed during the process. During the catalytic action‚ the enzyme binds to the substrate – the reactant enzyme acts on – and forms an enzyme-substrate complex to convert the substrate into the product. Each type of enzyme combines with its specific substrate‚ which is recognized by the shape. In the enzymatic reaction‚ the initial rate
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Enzyme Catalysis Abstract: Catalysis is an enzyme that decomposes hydrogen peroxide into oxygen and water. In this lab we will conduct a series of experiments to determine the affects of; pH‚ temperature‚ and concentration change on such catalysis. After completing the experiments we determined that catalase works most efficiently when in a 27°c‚ 50% (5 ml of catalase – 5ml of water)‚ and a normal body pH of 7°. By: Patrick Jawien Course Code: SBI 4U Performance Date: 25 September 2012
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complex of the enzyme is called the haloenzyme‚ the protein part is called an apoenzyme. Enzymes work by providing an alternative environment in which a reaction can occur more quickly. A particular part of the enzyme‚ called the active site is where the actual catalysis occurs. It is lined by acid residues whose side chains contain functional groups which help in catalysing the reaction. The substance which binds to the active site and undergoes the reaction is called the substrate. Sometimes the active site folds completely around the substrate
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1 Class XII Chemistry Ch 5: Surface Chemistry Chapter Notes Top Concepts / Key learnings: 1. 2. 3. 4. 5. 6. Adsorption: The accumulation of molecular species at the surface rather than in the bulk of a solid or liquid is termed as adsorption. Adsorbate: The substance which is being adsorbed on the surface of another substance is called adsorbate. Adsorbent: The substance present in bulk‚ on the surface of which adsorption is taking place is called adsorbent. Desorption: The process of removing an
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temperature is favorable for physical adsorption and High temperature for chemisortion. (iv)Pressure: - Pressure increases‚ adsorption increases. 9. CATALYSIS:- Substances which alter the rate of chemical reaction and themselves remain chemically and quantitatively unchanged after the reaction are known as catalyst and the phenomenon is known as catalysis. 10. PROMOTERS AND POISONS
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YILDIRIM 53 2 C ou rs e M NANOCATALYSTS at er ia ls Outline Catalysis • Types of Catalysts • Examples of Heterogeneous Catalysis Nanocatalysis • Preparation • Size Effects • Shape Effect • Support Materials Some Recent Advances • Nanocatalyst Preparation • Silica Supports • Carbon Supports M SN 53 2 C ou rs e M at er ia ls Catalysis • The catalyst accelerate the rate of a chemical reaction (A → B) without itself being
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