Cell Membranes and Transport Hands-On Labs‚ Inc. Version 42-0033-00-01 Exercise 1: Diffusion Observations Data Table 1: Rate of diffusion in different temperatures | | ºC | Minutes | Temperature | InitialTemp. | InitialColor | 5 | 10 | 15 | 20 | 25 | 30 | 60 | Cold | 10°celsius | clear | clear | clear | clear | clear | clear | light purple | light purple | Ambient | 25°celsius
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tube with wooden tongs and allow 1 min to record the amount of CO2 present 12. Repeat steps 1-11‚ 4 more times for that same sugar solution using the other 4 labelled fermentation tubes 13. Repeat steps 1-12 for glucose 14. Repeat steps 1-12 for sucrose Risk
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DRIED MALUNGGAY (Moringa oleifera) LEAVES IN ETHANOL PRODUCTION A Research Proposal Presented to Carmona National High School Special Science Curriculum In Partial Fulfillment of the Requirements for Research I Proponents: Catangay‚ Jhantal A. Gicana‚ Emchie Elaine R. Marasigan‚ Jan Ian B. Natividad‚ Abigail Jacinthe B. Viaje‚ Kyrinne Kate M. Zara‚ Hazel Jane Muriel C. March 2012 CHAPTER 1 THE PROBLEM AND ITS BACKGROUND We all know that ethanol or ethyl alcohol has a very
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1). While Bray and Popkin weren’t successful in supporting their hypothesis‚ a Princeton study concluded that HFCS is a cause of obesity. Princeton researchers used rats to test the effects of sugar and HFCS. Researchers gave the control rats sucrose dissolved in water‚ while the test rats were given HFCS dissolved in water. The researchers found the test rats fed HFCS gained a considerable amount of weight. With the new data‚ Princeton researchers believed they had a sufficient amount of information
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Diffusion of Ammonium hydroxide with red litmus paper Definition of diffusion 1. Diffusion is the process in which particles move from an area of high concentration to an area of low concentration in order to evenly spread out. 2 Diagram. 3. During the diffusion tube experiment I noted that firstly ammonium hydroxide was placed on to a piece of cotton wool. The cotton wool (with the ammonium hydroxide) was then placed in to a diffusion tube containing around 10 pieces of curled red
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The aim of our investigation is to find out whether the use of different sugar isomers with yeast‚ will affect the rate at which the yeast respires at. The sugars to be tested are fructose‚ galactose‚ glucose‚ lactose and sucrose. Their effects on the respiration rate of yeast to be observed through the measurement (cm3) of the displaced water‚ which will tell us how much CO2 has been respired over 2 minutes. To compare the effects an average will be calculated for each and a result will be drawn
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the compound we want must be separated from its other natural components‚ which can be done by manipulating physical and chemical properties. Panacetin contains sucrose‚ aspirin and an unknown which can be acetanilide or phenacetin in which phenacetin was created and weighed. Introduction In this lab our basic goal was to make the sucrose‚ aspirin and unknown that are formed from pharmaceutical panacetin. In doing this lab we used NaOH and diethyl either‚ along with water. We used a centrifuge
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Biology For Majors October 4‚ 2012 Abstract We examined the reaction an enzyme has when its concentration‚ pH and temperature are altered. In order to do this‚ we added different levels of pH into different test tubes with the enzyme (sucrose)‚ and substrate (sucrose)‚ and we then inverted the tube. The higher pH produced more enzyme activity. Temperature effects enzyme activity by decreasing its stability when the temperature increases. Oppositely‚ low temperature levels resulted in little to no
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respiration breaks down glucose to form viable ATP‚ oxygen gas is consumed and carbon dioxide is produced. This lab focuses on studying the rate of cellular respiration of saccharomyces cerevisiae‚ baker’s yeast‚ in an aerobic environment with glucose‚ sucrose‚ lactose‚ artificial sweetener‚ and water as a negative control. A CO2 Gas Sensor Probe is used to measure the amount carbon dioxide produced as the cellular respiration occurs which is proportional to how much of the molecule is decomposed. For this
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manual Result: Questions: 1. Yes. 2. Sucrose. 3. When no oxygen the ATP will be produce. 4. Brewery. 5. Aerobic glucose and aerobic glucose oxygen. 6. CO2 and aerobic water. 7. CO2 and aerobic ethanol. Conclusion: The purpose of this experiment is to determine sucrose gas form during fermentation with yeast is the most CO2. Sucrose did better than glucose because glucose is the simplest sugar and was there more as a control. Sucrose will produce the most CO2 because it is a complex
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