EXPERIMENT NO. 1 INTRODUCTION TO LAB INSTRUMENTS. 1. BREADBOARD We should be familiar to the following things about a breadboard: * What is a breadboard and what is it used for? * How does it work? * Setting Up. * Limitations. What is a breadboard and what is it used for? A breadboard (or protoboard) is usually a construction base for prototyping of electronics. The term "breadboard" is commonly used to refer to a solderless breadboard (plugboard). It was designed by
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Kathleen Kramas Cells and Heredity Lab Tuesday 2:00-4:50 22 OCTOBER 2012 Membrane Permeability Decreases as Molecular Size Increases Introduction: Red blood cells are vital to organisms functioning properly. They are microscopic cells that carry oxygen from the lungs to all the tissues throughout the body. Upon transporting oxygen‚ red blood cells also exports waste‚ such as carbon dioxide‚ to the lungs where it can be expelled. Red blood cells are made up of hemoglobin which is surrounded by a
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Benjamin Kleveland 502 October 26‚ 2014 Lab 7 Report Lights Distance and Wavelength Effect on Photosynthesis Photosynthesis and cellular respiration are often mistaken as the same thing. Although they are similar in many ways‚ photosynthesis and cellular respiration are the exact opposite of each other. Not figuratively‚ but literally the reverse (Photosynthesis). They incorporate the others products while adding some outside energy to create a never ending cycle. This brings us to the photochemical
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fluoride ion concentrations with solutions and volumes that were pre-determined before the initiation of the lab.1 Placed 50uL of the enzyme in each test tube.1 Ran each reaction for the duration of five minutes.1 Quenched each test tube with 250uL of 6M NaOH after five minutes.1 Measured the absorbance of each sample at 405nm and recorded all data.1 Sodium hydroxide is corrosive and an irritant.3 Sodium phosphate is toxic and is a skin and eye irritant.4 Sodium fluoride is corrosive and is a skin
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Joseph Sulaiman Alya Abourezk 4/13/12-4/14/12 Class Action Lab Report Purpose: To determine‚ through observations‚ the identity of substances produced in a chemical reaction. Materials: Safety Goggles Stirring rod Magnesium ribbon Solid CuSO4•H2O Matches Test tubes Copper metal 3M HCl Red and blue litmus strips 0.1M AgNO3 Zinc metal 0.1M Pb(NO3)2 Test tube holder 0.1M KI Bunsen burner 0.1M Na2NO3 Crucible tongs 1.0M NaOH Water (H2O) 0.1M Ca(NO3)2 50mL beaker
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statistically significant at a 99.8% confidence level. This means that there is a 0.1956% chance that the differences in velocity between the inhibited and uninhibited reactions are due to random chance. Based on these results it can be concluded that the sodium cyanide inhibitor reduces the reaction rate of enzyme-catalyzed reactions. The Vmax for the inhibited reaction was 1.208 mL/s and the uninhibited reaction was 2.41 mL/s. The Km for the inhibited reaction was 6.8611M and the Km for the uninhibited
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tubes • Mortar and Pestle • Refrigerator • Hydrogen Peroxide • 7.0 pH Phosphate buffer solution • Thermometer Methods The potato was crushed with a mortar and pestle to make a slurry (the catalase) and poured it into a 250 ml beaker. Four 100 mm test tubes (marked at every cm) were filled from the beaker with a mixture of the catalase and a 7.0 pH phosphate buffer solution to the 1 cm mark
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Stoichiometry Lab Stoichiometry is the end result of adding up chemical elements that were involved in chemical reactions (http://dictionary.reference.com/browse/stoichiometry). The word stoichiometry was obtained from two greek words meaning element and measure. This explains the definition for the term. A chemist named Jeremias Benjamin Richter was the chemist responsible for first realizing what stoichiometry was (http://www.chemteam.info/Stoichiometry/What-is-Stoichiometry.html). In 1972
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The temperature of water was determined by a thermometer. 1 cm stripped ends of the wires was hooked into the input posts on the back of the impendence converter. Lab tutor module was started after. B. Baseline heart rate The top of the container was covered with foil and the animal was allowed to sit quietly for 10 min. The trace was examined by pressing start. After that the baseline or the controlled
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Maryely Ramirez Professor Theresa Sterner Bio Lab 105 04 November 2013 The Effects Environmental Temperature and pH have on the Activity of Porcine Pancreatic Amylase Introduction There are many types of enzymes and each has a specific job. Enzymes are particular types of proteins that help to speed up some reactions‚ such as reactants going to products. One of them is the amylase enzyme. Amylases are found in saliva‚ and pancreatic secretions of the small intestine. The function of amylase is
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