"Join or Die." A meeting was held in Albany in the spring of 1754 to address this issue. Colonial leaders‚ officials and representatives from seven of the British colonies attended the conference. Benjamin Franklin and Massachusetts governor Thomas Hutchinson together drafted a proposal of colonial unity to combat the war against the French. It was called the Albany Plan of Union. The plan would create new layers of government including a president-general that was appointed by the crown.
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NAZI MEDICAL EXPERIMENTS During World War II‚ a number of German physicians conducted painful and often deadly experiments on thousands of concentration camp prisoners without their consent. Unethical medical experimentation carried out during the Third Reich may be divided into three categories. The first category consists of experiments aimed at facilitating the survival of Axis military personnel. The second category of experimentation aimed at developing and testing pharmaceuticals
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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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Effects of Concentration Purpose: the purpose of this part of the lab is to see the effects of enzyme concentration on the reaction rate. Part 2: Effect of Substrate Concentration Purpose: The purpose of this part of the lab was to find the effect of substrate concentration on enzyme activity. Part 3: Effect of Temprature Purpose: The purpose of this part of the lab was to
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Enzymes All enzymes are globular proteins and round in shape They have the suffix "-ase" Intracellular enzymes are found inside the cell Extracellular enzymes act outside the cell (e.g. digestive enzymes) Enzymes are catalysts → speed up chemical reactions Reduce activation energy required to start a reaction between molecules Substrates (reactants) are converted into products Reaction may not take place in absence of enzymes (each enzyme has a specific catalytic action) Enzymes catalyse
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I. Purpose Through this project‚ our goal was to demonstrate an understanding for the concepts of pressure‚ Newton’s Laws‚ Bernoulli’s Principle‚ volume flow rate‚ efficiency‚ power‚ potential and kinetic energy‚ and work. It provided a summation for most of the topics covered in this course. II. Materials Craftsman Leaf Blower (220 mph‚ 120 V‚ 12A‚ 8 lbs.) ¾’’ Plywood (75 lbs.) Milk Crate (3 lbs) Spray Paint (12 oz.) Blue Tarp Staple Gun HVAC Duct Vent Piping ( 2
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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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Enzymes are naturally occurring biological catalysts that are extremely efficient and specific. Enzymes accelerate the rate of a reaction by factors of at least a million as compared to the same reaction without the enzyme. Most biological reaction rates are not perceivable in the absence of the enzyme. The term enzyme was first used by a German pshysiologist Wilhelm Kühne in 1897. There are over 700 different kinds of enzymes that have been identified. Enzymes can be classified into several categories
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How Environment Can Effect Enzymes Introduction: In a chemical reaction there sometimes can be a catalyst present known as an enzyme. An enzyme is a protein that speeds up a chemical reaction by lowering the amount of activation energy required to start the reaction. By lowering the activation energy‚ more of the substrate is able to participate in the reaction‚ speeding it up. Enzymes are substrate specific. The substrate is what the enzyme bonds to. That is to say that enzyme A will only react
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MODULE 9 Self-test case (100 Minutes) Scents for Less Ltd. Updated Sept 12‚ 2011 As a recently graduated CGA‚ you started your new position as controller for Scents for Less Ltd. (SFL) on August 1‚ 2011. It is now a week later and you are working on several specific tasks assigned to you by your employer. You are understandably eager to impress your new employer and are looking forward to your new responsibilities. SFL produces generic colognes in relatively small quantities and sells them
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