Daphnia Experiment Report 1. Introduction Caffeine is found in many plant species‚ where it acts as a natural pesticide. It is found most commonly in cocoa‚ tea and coffee‚ but is also artificially added to some soft drinks such as cola to act as a flavour enhancer. When consumed by humans‚ caffeine works as a stimulant causing amounts of released neurotransmitters to be increased. High use of caffeine has been related with raised blood pressure‚ restlessness‚ insomnia and anxiety which‚ in
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Solute Concentration of Potatoes Lab #1 Purpose: To find the molarity/concentration of potato cytoplasm. Materials: As on page 1 in the lab handout. Procedure: As on page 1 in the lab handout. Data and Observations: Test Tube # | Concentration of sucrose solution (mol/L) | Initial Mass (g) | Final Mass | Percentage change in mass | 1 | 1.0 mol/L | 3.00g | 2.25g | -25.0% | 2 | 0.9 mol/L | 2.70g | 2.07g | -23.3% | 3 | 0.8 mol/L | 2.92g | 2.25g | -22.9% | 4 | 0.7 mol/L | 2.60g
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Lab Report Experiment 1 & 2 CHM-101 Amele Takpara Partner: Jessamyn Dupree ------------------------------------------------- Experiment 1 ------------------------------------------------- (Pre-Lab Questions) 1. In the design of a Bunsen burner‚ explain the purpose of a. the gas control valve The gas control valve regulates the rate at which methane enters the burner. b. and the air vents. The air vents control the rate at which air enters the burner 2. Why is a luminous
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The reason for performing this experiment was to test the agnostic behavior coming from the male Betta fish. This experiment was conducting by taking a male Siamese fighting fish and placing its fish bowl next to a mirror so it would be able to see his reflection. We also exposed the fish to many others to see if the behavior was the same or different when placed next to: a goldfish‚ a female Betta fish‚ and a zebra fish. My hypothesis was supposed by this experiment and it was observed that the
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MEC 325/580 Lab Report CNC Machining Lab Report Date: March 18‚ 2013 Group Leader: Jian Wu Team Members: Group Number: G4 Regment No.: D Insturctor: CONTENTS 1.Objective and introduction. 2.Principles and practice. 3.Design and result. 4.Conclusion and recommendations. Appendices 1. Objective and introduction * Objectives Operate the CNC milling machine using G-codes‚ M-codes in a CNC program. * Equipment: Minitech CNC machine (Series 2) * Machine
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The supplement that I chose was Nitric Oxide. This is a very up and coming supplement in the industry and although not many studies have been done on the long term effects many more gym goers are jumping on the band wagon and experiencing the benefits of it. Some history on Nitric Oxide is that it was first discovered in 1772 by Joseph Priestly‚ who called it "nitrous air‚" nitric oxide was first discovered as a colorless‚ toxic gas. Unfortunately‚ the classification of toxid gas and air pollutant
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Microbiology-2460 Lab-003 March 31‚2008 Lab Report-Escherichia coli Abstract The purpose for this lab report was to identify and inform of an unknown bacteria that has been causing a patient to have lower abdominal and pelvic pain. To obtain the identification of this unknown bacterium‚ several biochemical tests needed to be performed in order to prescribe the correct medication to treat and cure the symptoms. Introduction In a lab today‚ I am to identify an unknown bacterium that is
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Laboratory Report The Plasma Membrane I. Introduction The Plasma membrane is the edge of life‚ the boundary that separates the cell from its surroundings. It controls the traffic of materials in and out of the cell. (Reece‚ 2011). It is incredibly thin that is very vital in maintaining the integrity of the cell. Not only does the plasma membrane bind the other organelles‚ it also forms a dynamic structure which gives them their remarkable activity and selectivity. (Hickman‚ 2008). Diffusion
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Lab Report Janice Chisholm SCI207: Dependence of Man on the Environment Instructor: Lee Ott April 28‚ 2013 1. What patterns do you observe on the information table 4? While observing the information in table 4‚ it appears that the number of fish changes from time to time and the oxygen increases and / or decreases when this occurs. 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water?
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The Charge/Mass (e/m) Ratio of the Electron PHYS 0212: Introduction to Laboratory Physics Fall 2012 Abstract The experiment conducted demonstrated correlation between the charge and mass of an electron and the behavior of magnetic fields. The lab was divided into four parts. The first three parts were conducted with a compass that was used to locate the magnetic field lines around a bar magnet‚ a solenoid and then a pair of Helmholtz coils. As a result of these trials‚ our observations found
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