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    PEES 4200W- Physiology of Exercise Lab #2: Metabolism and Energy Expenditure 1. The Respiratory exchange ratio is the ratio of the volume of carbon dioxide produced and oxygen consumed. The ratio indicates the energy that the subject is expending for indirect calorimetry‚ how efficient the subject ’s body is at utilizing the oxygen inhaled‚ as well as the main substrate being used for energy during varying intensities of exercise. During rest the volume of carbon dioxide was 0.73L/min‚ the volume

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    starch and iodine? Introduction Amylase is an enzyme found in human saliva and pancreas. It is the digestive enzyme that is needed to breakdown starch molecules. Amylase must be kept at certain conditions to function at its optimum level. This experiment will explore the effect of pH (1‚ 4‚ 7‚ 10‚ and 14) on the function of amylase by using starch and iodine. Usually iodine has a orange-yellow color‚ but iodine and starch react to produce a dark blueblack color‚ so iodine may be used as an indicator

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    macromolecules with many different functions (Mbuthia‚ 2012). Many are structural components of bone‚ muscle‚ hair‚ tissue‚ etc. Others are enzymes that speed up cellular reactions. All proteins are made up of amino acids (Johnson‚ 2010). The purpose of this experiment is to determine whether peptide bonds are present in various food substances. The color violet will indicate the presence of proteins. The more intense the color is‚ the greater number of peptide bonds there are (Mbuthia‚ 2012). Methods Using

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    induction motors are necessary used when the load requires high starting torque. The induction motor used in this experiment is a there-phase squirrel-cage induction motor. 2.2 Power converter Since it is necessary to adjust the voltage magnitude according to maintain a constant air-gap flux‚ when the motor supply frequency is varies‚ a power-converter is used in the experiment A power converter is power-electronics based device which can supple power with varied frequency. It first converts

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    Overdeterminate Truss The picture shows SE 110.22 in a frame similar to SE 112. * Comparison of forces in statically determinate and overdeterminate trusses1 * Bars with strain gauge full bridges to measure bar force1 * Computerised evaluation of experiments Technical Description Overdeterminate trusses are employed where overdimensioning is purposely required because safety must be maintained in the event of failure of an element‚ such as in aircraft construction. With additionally inserted bars a

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    Extended Experimental Investigation | May 28 2013 | Drosophila melanogaster lab experiment Question: How do the dominant or recessive genes in particular traits in a cross between a male and female Drosophila determine the traits of its offspring? Aim: to establish whether characteristics produced from the offspring of a drosophila cross are recessive or dominant traits. Hypothesis: If certain phenotypes are expressed in the offspring from the cross of certain Drosophila‚ then the determination

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    Experiment 4 Lab Review

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    Experiment #4 (10/31/14) Lab Review Objective To introduce the basic molecules of life and to test for their presence in different substances. Introduction Macromolecules are in all forms of life.  These organic compounds are carbohydrates‚ lipids‚ proteins‚ and nucleic acids.  These are monomers and they link together into long chains that form polymers.  Different reagents can be used to find the presence of these macromolecules. Proteins are made of carbon‚ hydrogen‚ oxygen‚ nitrogen‚ and sometimes

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    Job Safety Analysis or Job Hazard Analysis All employers have duty of care to individuals‚ staff‚ contractors or third parties in the workplace. It is also a legal requirement that organizations should document any health and safety risks that have been identified in the workplace. Equally‚ it is necessary to record the actions taken to reduce those risks What is a Job Safety Analysis or Job Hazard Analysis? One way to increase the knowledge of hazards in the workplace is to conduct

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    Timeframe of Experiment Insertion Time: 29 November‚ 2007 – 8:54 am Extraction Time: 30 November‚ 2007 – 9:40 am Legend for Potato Differentiation Potato Mark Potato 1 Vertical line Potato 2 Horizontal Line Potato 3 Notch DATA COLLECTION (Fig. 1) Diagram demonstrating the correct preparation of a potato – cylindrical strips marked according to the legend Potato Osmosis Biology SL - ATh Raw Data Table – Mass and Lengths of Potato Strips – Pre- & Post-Experiment NaCl Potato

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    A. ENG237-02: Transients in RC and RL Circuits 0. Introduction The objective of this experiment is to study the DC transient behaviors of RC and RL circuits. This experiment has divided into 6 parts: 1. Charging curve from measured data ( R = 10M Ω and C = 4 mF ) 2. Draw the charging curve by the graphical method 3. Discharging curve from measured data ( R = 5M Ω and C = 4 mF ) 4. Draw the discharging curve by the graphical method 5. Display of the charging and discharging

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