Abstract Enzymes are proteins produced by living cells. In an enzyme, the substrates bind with the active site of an enzyme, breaking them down into other molecules. Enzymes acts as catalyst which lower the reaction energy and allows it to take place in less time and at lower temperatures. Enzymes can be used in a reaction without actually being used up; therefore, they can be used reversibly. Temperature, salt concentration, substrate concentration, enzyme concentration, and pH can affect enzyme reactions
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Lab Report #2 Name: Lab: #9 Enzymes – Experiment #4 Due date: Purpose The purpose of the experiment is to compare and examine the effect of substrate concentration on catalase activity. Introduction All chemical reactions require a catalyst. A type of catalyst that exists is an enzyme, which acts to bring out a specific biochemical reaction. At all times, all work inside a cell is being performed by enzymes (Brian, 2000). The purpose of an enzyme is to help the cell carry out reactions
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called enzymes. Enzymes would temporarily bond to one or more reactants of a reaction and catalyze, meaning they speed up the process with lower activation energy needed. Enzymes provide a variety of functions such as cells using an enzyme to rid themselves of a poisonous substance (hydrogen peroxide) and also energy usage. catalase 2H2O(l) ( 2H2O(l) + O2(g) This lab measured the time it took for a disc of filter paper soaked with different concentrations of enzyme to make
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Affect Enzyme Activity Purpose The purpose of this lab is to see if changing the temperature, pH, or concentration of enzymes effects catalase activity. Background Enzymes are in every living thing. Enzymes are catalysts they speed up chemical reactions by reducing the amount of energy needed to perform them. Without them most chemical reactions would happen much too slow for life to exist. Enzymes are very special and each is designed to do one specific thing. One type of enzyme per type
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Hillsborough Community College - Ybor City Campus 1025C Laboratory Exercise 3: Characteristics of Enzymes Introduction What are Enzymes? Enzymes are very large and complex proteins that that function as catalysts. They are synthesized by the cell to perform very specific functions. Each type of enzyme has a very specific shape (conformation) which provides its specific function. The shape of an enzyme molecule is determined and maintained by many weak intermolecular interactions between many different
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Enzyme Post Lab Report Type of Fruit Prediction Result Apple None None Orange None None Pineapple Take longer to dissolve into the Jello Broke through the Jello quicker than the heated pineapple Heated Apple None None Heated Orange None None Heated Pineapple Breakdown through the Jell-O fast Broke through the Jell-O slower than the regular pineapple Q.1.) The piece of pineapple is the fruit that contains the enzyme Bromelain Q.2.) It is possible to make Jello with canned pineapple chunks but not
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The purpose of the enzyme lab conducted was to observe the chemical composition of cells. In order to do so we tested for the presence of organic molecules. Molecules are what forms when atoms bond together. Organic molecules of cells include proteins, carbohydrates, and lipids, which are composed of smaller molecules known as monomers and polymers. Polymers are joined monomers. A chemical reaction links monomers together occurs and releases a water molecule, this is called dehydration synthesis
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Shigella dysenteriae (far left). Pseudomonas aeruginosa (center) is a nonfermenter. The end product of glycolysis is pyruvate. Organisms that are capable of converting pyruvate to formic acid and formic acid to H2 (g) and CO2 (g), via the action of the enzyme formic hydrogen lyase, emit gas. This gas is trapped in the Durham tube and appears as a bubble at the top of the tube. Escherichia coli and Proteus
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2.1.18 Enzymes are Globular Proteins Catalyst Molecule/element that speeds up a chemical reaction but is not used up in the reaction and remains unchanged after the reaction Globular proteins have specific tertiary structures. The shape comes from the protein’s primary structure (Sequence of amino acids) and it’s secondary structure. In globular proteins the tertiary structure usually has hydrophobic R groups in the centre and hydrophilic R groups around the outside of the ball. Enzymes are: Globular
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Factors Affecting Enzyme Activity Analysis of Enzyme Activity: Catalase and Tyrosinase Introduction to Neurotransmitters: Acetylcholinesterase Abstract: A series of three labs were combined to observe the effects of some common biological enzymes: Catalase, Tyrosinase, and Acetylcholinesterase (AChE). Enzymes are catalytic proteins, that when present in a chemical reaction, are able to lower the action potential needed to create the reaction without being destroyed or altered themselves
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