Elena Mesa Nov. 15‚ 2013 Ms. Lelacheur IB Biology HL The Effect of Temperature on Beet Root Membranes What is the affect of temperature on beetroot membranes? Hypothesis: It is hypothesized that as the temperature increases‚ the deeper red the beetroot water will be. At higher temperatures the proteins in the beetroot plasma membrane will denature‚ leaving holes in the membrane and allowing the red pigment in the cell sap to seep out into the water around it. Variables: Dependent-The
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Measuring the Speed of Sound and Air using a Pulse-Echo Technique Purpose To determine the speed of sound in air using the pulse-echo experiment procedure‚ and comparing it to the predicted speed of sound in air using the measured air temperature of the classroom. Hypothesis I believe that the speed of sound it the air will be close to that of the predicted value. According to our predicted value‚ we should expect the speed of sound in the air to be at a speed of approximately 346 m/s. Materials
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Name: Date: Graded Assignment Checkup: Applications of Logarithms Answer the following questions using what you ’ve learned from this lesson. Write your responses in the space provided‚ and turn the assignment in to your instructor. For 1 – 2‚ use the following situation: In 1991‚ the cost of mailing a 1 oz. first-class letter was 29 cents‚ and the inflation rate was 4.6%. If the inflation rate stayed constant‚ the function C(t) = .29(1.046)t would represent the cost of mailing a first-class
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Yeast Experiment – Temperature Yeast fermentation is affected by temperature as an outcome of the many different temperatures that yeasts are exposed to. The accepted value for yeasts optimum temperature is approximately 66.667 degrees Celsius. If yeast is exposed to their optimum temperature‚ then this would create the most amount of fermentation. In this experiment however‚ the yeast were exposed to temperatures below their optimum. The chemical reactions within yeast are facilitated by enzymes;
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Louis XIV was the outcome of the despotism convention that was insinuated into him from childhood. Right from his early years he was taught to follow the changes that took place in French monarchy from earliest times to the present and was accustomed about various individuals‚ procurements and non-fulfilment of his antecedents. French monarchy could be mustered of a rich and varied heritage as it had substantial aid at his conveyance‚ some ambrosial in inception while others ascend from the rights
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Date: Nov 15‚ 2011 Re: Conveyor Belt Project Part 5-6 Class: BA 562 Part5: First quarter‚ Apr 1‚2010: We will determine how well each activity has gone from VAC. VAC (variance cost at completion) is the difference between EAC and BAC‚ negative variance indicates that the project will be completed overbudget. Kernel specifications‚ Utilities specifications‚ and Complex utilities are all negative VAC’s. Those activities will be completed overbudget‚ whereas Hardware specifications and Operating
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Determining the enthalpy change for the thermal decomposition of potassium hydrogen carbonate into potassium carbonate. Controlled Variables: 1. Volume of HCl ± 0.5 cm3 (± 2%) 2. Concentration of HCl‚ 3. Same mass of K2CO3 and KHCO3 within specified ranges of 2.5 – 3.0g and 3.25 – 3.75g respectively 4. Same calorimeter used i.e. polystyrene cup is used in this experiment 5. Same thermometer will be used ± 0.10K 6. Same source of K2CO3‚ KHCO3 and HCl Raw Data Results: The raw
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Introduction: Biology is the science of life and thus one of the many sciences that are part of everyday life. Diffusion and osmosis are processes that are a constant in our lives‚ even though many don’t realize it. Medicaments such as Fervex can be drunk only after diffusion has taken place and the powder granules have diffused into the hot cup of water. On the other hand‚ every day we become unintentional witnesses of osmosis when the roots of the plants try to suck up the water from the soil
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The purpose of the following study is to determine where the two unknown bacteria acquired in Microbiology lab should be classified in regards to temperature‚ pH level‚ and osmoregularity. It is important to classify bacteria in order to identify them. Identification of bacteria is important because they are not only useful but potentially dangerous as well. The identification of bacteria can lead to breakthroughs in healthcare regarding treatment of old and new diseases alike. Identifying bacteria
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Experiment 1: Errors‚ Uncertainties and Measurements Laboratory Report Department of Math and Physics College of Science‚ University of Santo Tomas Abstract With the use of the ruler‚ vernier caliper‚ micrometer caliper and electronic gram scale‚ the group was able to acquire different sets of measurements by measuring the sphere of unknown composition. The group then was able to compute its mean diameter‚ average deviation‚ average deviation of the mean‚ volume‚ mass and % percent
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