Practical 2.1- The Effect of Temperature on Membranes Objective To investigate the effect of temperature on membrane structure Introduction Beetroot Pigments Beetroots contain Betalains which are the red pigments present in the cell vacuole. Betalains are soluble in water and they contain nitrogen. Betalains extracted from beetroot is commonly used as food dye because it is not known to cause any allergic reactions. Beetroot Picture taken from http://tipdeck/how-to-cook-beet-root Structure
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being watered. The dependent variable will be the plant growth rate. Five variables that should be controlled during the experiment: 1. How much sunlight the plants are all receiving. 2. How much water the plants receive. 3. The amount of room the plant has to grow in the pot. 4. The type of soil being used on the plant. 5. The type of plant. Part Two: Purpose Study at different times of the day to see if the time has an effect on how much information is retained. What part of the day
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Lab Report: How Temperature affects Reaction Rate Aim: The Aim is to investigate how temperature can affect Reaction Rate. The experiment will be performed by heating equally sized and weighted lime stones with equal amounts and concentration of Hydrochloric acid at different temperatures. The temperatures will be 35˚C and 40˚C. We will measure the reaction rates by observing gas release of the reaction between lime stones and Hydrochloric acid. The amount of gas release at different
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The Effect of Temperature on Solubility By Aviraj Singh Rogers 2 Background: The solubility of most solid substances is generally said to increase as the temperature of the solvent increases. However‚ some substances‚ such as ytterbium sulfate‚ do the opposite. This can be explained through the Second Law of Thermodynamics which states that “in all energy exchanges‚ if no energy enters or leaves the system‚ the potential energy of the state will always be less than that of the initial state”
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object is‚ the greater the force of attraction will be. It was Italian scientist Galileo Galilei who formulated the laws of accelerated motion and free-falling objects. He found out that when an object is dropped and falls to the ground it has a falling rate of 9.8 meters per second‚ squared. Newton’s law of universal gravitation states that any two objects in the Universe exerts gravitational attraction on each other‚ with the force having a universal form: ‚ F=the gravitational force G= the universal
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PROCEDURE: Part A (Effect of temperature on growth) 1) 15 tubes of glucose broth are provided and one set of 3 tubes are inoculated with each of the following cultures; Escherichia coli‚ Pseudomonas fluorescens‚ Micrococcus luteus and Saccharomyces cerevisiae. The last served as control. 2) One of the three tube of each culture is incubated at each of the following temperature: * 4°C * 37°C * 55°C 3) All the tubes are incubated within 5 minutes after inoculating. The turbidity
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Effects of SO2 On Fermentation Rates Purpose SO2 is the primary inhibitor for natural microbiological growth in wine. It prevents the browning of juice by inhibiting phenol oxidase activity and kills the natural yeast cells for the utilization of fermentation-controlled commercial Saccharomyce strands (Boulton et al. 1996). SO2 is pH and temperature dependent and can exist as several forms. The bisulfate form (HSO3-) can complex with soluble solids such as anthocyanins and acetaldehydes to become
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BSC 1005 M-F 12:00 – 1:00 LAB 1- SCIENTIFIC METHOD HOW FAR CAN A MEALWORM CRAWL? Observations: 1. The scientific method allows for an organized and systematic approach to problem solving. It represents the “backbone” of scientific research‚ as well as a useful method in everyday decision making. The steps involved in the scientific method would include‚ but not be limited to‚ the following: 1. Statement of problem 2. Information gathering on research 3. Formulation of hypothesis/possible
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comrlocatermsec Metal nanoparticles for the production of carbon nanotube composite materials by decomposition of different carbon sources A. Weidenkaff a‚ ) ‚ S.G. Ebbinghaus a ‚ Ph. Mauron b‚ A. Reller a ‚ Y. Zhang a ‚ A. Zuttel b ¨ a Institute of Solid State Chemistry‚ UniÕersitat Augsburg‚ UniÕersitatsstr. 1‚ D-86159 Augsburg‚ Germany ¨ ¨ b Physics Department‚ UniÕersite de Fribourg‚ Perolles‚ CH-1700 Fribourg‚ Switzerland ´ ´ Abstract Carbon nanotube composite materials were produced
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Does Human-Produced Carbon Dioxide Contribute to Global Warming? There are always two sides to an issue. This is especially true in Science. Each side will gather facts and statistics to help their argument. They will also fuel the argument with their opinions. Some articles are more persuasive in their reasoning then others. This persuasion can ultimately change a person’s opinion of the issue. The question to be answered is does human-produced carbon dioxide contribute significantly to
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