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    Daphnia Lab Report

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    The effects toxins such as caffeine‚ nicotine‚ epinephrine‚ ethanol and salt have on the Daphnia magna’s heart rate Results The effect the various drugs caffeine‚ nicotine and epinephrine had on the Daphnia magna is displayed in Figure 1. After three sample trials were taken there was an average of 180 beats/min-1 ± 6.928 taken under normal conditions. The addition of caffeine caused an increase in the average heartbeat to change to 192 beats/min-1 ± 9.165 in the Daphnia magna tested. When testing

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    crystalization lab report

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    Crystallization: Lab Report Theory/Introduction The purpose of this lab is to understand the concept of purification through crystallization. Crystallization is the process of purifying a substance‚ with the most adequate solvent. The process of crystallization came to be based on the principle of solubility. First‚ we must choose a solvent. The solvent is crucial to crystallization because it’s what will allow impurities to dissolve. Therefore‚ when selecting a solvent it is important that it

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    Enzymes Lab Report

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    Also‚ to understand that the rate of the reaction can be saturated and it depends on the concentration of the substrate (when [S]  [E]). Specifically‚ we studied the kinetics of the enzyme lactase which is an enzyme that catalyzes the hydrolysis of lactose sugar into glucose and galactose

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    A Lab Report on CO2

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    CO2 Lab Report Intro Alka-Seltzer tablets are used to treat cold/flu symptoms as it produces CO2 when dissolved in water. The goal of this lab is to calculate the amount of NaHCO3 is needed to produce enough CO2 gas to fill the room. Experimental One Alka-Seltzer tablet was weighed on the analytical balance. Then a piece was measured out to be between 0.21 and 0.28 grams. 500mL of distilled water was added to a 600mL beaker. 80mL of water was mixed with 20mL of 6M HCl in a 150mL beaker. A

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    Cell Lab Report

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    STRUCTURE AND FUNCTION OF LIVING CELLS Name Answer the following questions as you work your way through the lab material typing in your answers. Then submit your completed lab report through the “Assignment” feature. This lab report is worth 50 points towards your final lab grade. Also‚ per the Honor Code‚ this work must be your own. CELLS Using your Biology Textbook answer the following questions. 1. What types of organisms are Prokaryotes? The Prokaryotes are organisms that are

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    Lab Report Chem

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    Formal Lab Report #1 I. Basics Title of the Experiment: The Empirical Formula of an Oxide Authors: Section Number: Chemistry Location and Date II. Abstract The aim in this lab was to determine the empirical formula of an oxide of magnesium through combustion in air. This was achieved by heating an established mass of magnesium in air inside of a crucible‚ ultimately attaining a compound that contained Mg and O. The major result of the experiment was the empirical formula of the oxide of magnesium

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    Metabolic Syndrome: A Precursor of Heart Disease In 1988‚ Dr. Gerald Reaven was awarded the Banting Medal for Scientific Research by the American Diabetes Association and introduced the term Syndrome X to the medical community. According to Dr. Reaven‚ “Syndrome X is a simple way to refer to a cluster of changes that encourage the onset and development of heart disease.” (Reaven‚ 2000‚ pg. 40) The medical terms Syndrome X‚ Insulin Resistance (IR)‚ or Metabolic Syndrome (MetS) have been used interchangeably

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    Peroxidase Lab Report

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    peroxidase and its reaction rate in seconds‚ we were able to see that as the amount of enzyme increased the catalytic reaction also increased. The optimal amount of peroxidase concentration to be used in the subsequent experiments was determined to be 1.0 mL. Any amount above this would have caused the rate of absorbance to be too fast‚ making it too difficult to get accurate readings. Any amount below this would not have produced a reaction “at an appreciable rate.” (Dolphin‚ Vleck‚ Colbert and

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    Penny Lab Report

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    IB Chemistry Experiment 4 Composition of a Post-1983 Penny Lab Report Background: Through the use of percent composition one can easily find out how much of a certain element is in a compound or an item such as a post-1983 penny. The experiment will be using HCl a strong acid to dissolve all the zinc inside the outer copper shell. The reaction follows as such; Zn+2HCLZnCl2+H2‚ but there will be no reaction with copper. The portion that will be measured is the mass of copper left after all of

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    Evolution Lab Report

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    4. Results No hypotheses in the discussion section were necessarily falsified‚ but some broad statements were made. For example; “Culture conditions obviously influence the outcome of adaptive evolution.” This statement implies that they have extensive knowledge on all the different aspects of evolution. Many scientists today will admit that we do not fully understand evolution and all the factors involved. To say that the conditions ‘obviously’ influenced that outcome is too broad of a statement

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