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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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 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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concentration gradient across a cell membrane. The solute (dissolved substance) concentration affects the rate of osmosis causing it either to speed the process up or slow it down. Based on this‚ how does different concentrations of sucrose affect the rate of osmosis? If sucrose concentration increases in the selectivity-permeable baggies‚ then the rate of osmosis will increase. MATERIALS AND METHODS The start of the experiment consisted of filling up four beakers with de-ionized water to 150 ml.
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the type of bonds which are present in each solid. Various substances (paraffin wax‚ sucrose‚ sodium chloride‚ tin‚ and silicon dioxide) were experimented and identified with tests for hardness‚ solubility‚ conductivity‚ and the time for the solid to melt with a candle and Bunsen burner. The substances were identified according to their properties. Paraffin wax was identified as a non-polar covalent solid‚ sucrose is a polar covalent‚ sodium chloride was acknowledged as an ionic solid‚ tin is a metallic
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An investigation how sugar solutions of different concentrations affect osmosis. Research Osmosis is the diffusion of water across a partially permeable membrane from a dilute solution to one of a higher concentration. If a solution has a low concentration then the amount of (in the case of my investigation) sugar‚ the solute‚ will be low and the solution will be weak. If there is high amount of sugar then the solution will be concentrated (have a high concentration). When two solutions
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to be equal‚ causing equilibrium and a stop to net water movement. The goal for a recent lab was to test whether cubes of potato would gain or lose weight depending on the amount of molar concentration of sucrose they soaked in. Solutions made of different molar concentrations of the solute sucrose were prepared before this lab. Potato cubes were weighed and recorded as the initial mass in the data. Four cubes of potato were placed into 100 mL of each solution and let stand overnight. The cubes were
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