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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ACETANILIDE BY RECRYSTALLIZATION. Retrieved September 24‚ 2014‚from http://www.cerlabs.com/experiments/1087540703X.pdf [7]. RECRYSTALLIZATION.Retrieved September 27‚2014 from http://chemistry.barnard.edu/orgolab/lab2 and http://web.centre.edu/muzyka/organic/lab/24_recrystallization.htm
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IDENTIFYING GRAM POSITIVE COCCI As mentioned in Exercise 8‚ “Identifying Gram Negative Rods”‚ identifying bacteria is a common activity in the microbiology lab. Like the game Clue™‚ each time you gather a piece of information to solve the mystery‚ you gather some information that supports some identities and eliminates others from contention. In the lab‚ the process continues as you gather more information until only one microbe remains and all others have been eliminated as possibilities. Thus
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Alka-Seltzer Rocket Formal Lab Report Abstract In the Alka-Seltzer Rocket lab one was to experimentally determine how much (grams) Alka-Seltzer and water in mL‚ is needed to launch the rocket the highest/longest distance in cm. Also to experimentally determine the % NaHCO3 in the tablet using the information from the highest/longest distance. Calculate the error and % error of NaHCO3 in an Alka-Seltzer tablet and to determine the limiting reagent for the highest/longest distance traveled. Alka-Seltzer
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Unknown #1 Vomit Serratia marcescens & Bacillus cereus Biol 251 Microbiology 5/14/2009 Introduction The purpose of this study is to differentiate and identify two unknown organisms provided by the instructor in a nutrient broth. It is only known that the two organisms are from vomit; one is gram-positive and the other is gram-negative. It is necessary to first separate the two organisms by inoculating a nutrient agar plate using the streak-plate method. The
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esophagus‚ and stomach. 2 These harsh qualities are alleviated by replacing the acidic hydrogens with less reactive groups of atoms: the acetyl group (COCH3). This results in acetylsalicylic acid or "aspirin". Acetylsalicylic acid is synthesized in labs and does not occur naturally. It is produced from adding acetic anhydride to salicylic acid in the presence of sulfuric acid (H2SO4)‚ an acid catalyst: (Diagram from 1) The impurities left over (unreacted salicylic acid‚ acetic acid and sulfuric acid)
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Biology 2020 Microbiology Study Guide for first exam The history and scope of microbiology 1) What are the organisms/entities of study in the field of microbiology? 2) Who was the first human to publish extensive descriptions of microorganisms? 3) How did Louis Pasteur dismantle the theory of spontaneous generation in bacteria? 4) Who established microorganisms as the causative agent of infectious disease? How did he do this? What was the result of this body of work
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chemicals before use. Abide by specific warnings and directions. 3. Collect all materials needed for a procedure before proceeding. 4. Perform reactions under the hood when directed. Chemicals may be weighed and prepared at balance or lab tables‚ but tests should be carried out under the hood. 5.Acids and caustic chemicals are stored in the hood. Please do not take these chemicals from the hood. Procedure: PART 1: Metathetical reactions Precipitation reactions A1. Add a
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Organic Chemistry II Lab 9 Fermentation of a Carbohydrate: Ethanol from Sucrose * Introduction Ethanol is one of the oldest alcohols and also the least toxic one. Industrially‚ ethanol is made most economically by hydration of ethylene. However‚ ethanol that is intended for human consumption must‚ by law‚ be prepared by fermentation. By either method‚ ethanol‚ of course‚ has the same formula‚ structure‚ and properties. The fermentation takes place with the assistance of enzymes from yeast
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viewed with as little illumination as possible and must be done quickly because of drying. Due to the limited stability of Trichomonas‚ the wet mount is not a suggested test choice in an outpatient location where transportation of the specimen to the lab is involved Exercise 2: Simple stains Define acidic and basic dyes. What is the purpose of each? Acidic dye also recognized as a negative stain‚ is defined as a negatively charged dye‚ containing single or extra acidic clusters‚ like a sulfur
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