Lab activity 1: Effect of temperature‚ concentration‚ and pressure on equilibrium Introduction Our ongoing discussion has been on systems at dynamic equilibrium: for a reversible reaction‚ the rate of the forward reaction is equal to the rate of the reverse reaction. What happens if equilibrium is disturbed? In this lab activity‚ we are going to examine the effect of changing reaction conditions on the position of equilibrium. Part I: Effect of temperature We will consider the equilibrium
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presentation learner will be able * Introduction of control of microbial growth * Define term related to control of microbial growth * Describe physical method of microbial growth * Control of Microbial Growth Control of Microbial Growth: Introduction * Early civilizations practiced salting‚ smoking‚ pickling‚ drying‚ and exposure of food and clothing to sunlight to control microbial growth. * Use of spices in cooking was to mask taste of spoiled food. Some spices
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Investigating the effects of temperature on cell membranes Independent variable: Temperature of beetroot Dependent variable: Absorbency of light Hypothesis: As temperature rises to its optimum temperature‚ the absorbency of light will increase because protein is an enzyme and will therefore be affected by temperature. This is because more beetroot dye will pass through the cell membrane and then into the distilled water. The deeper the colour of the beetroot dye‚ the higher the absorbency
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Table of Contents Abstract Introduction Aim Hypothesis Material Method Results Discussion Conclusion Abstract The aim of this experiment was to see whether different temperatures will affect the cell membrane‚ thus would then releases the purple pigments out of the vacuole which causes the leakage of the purplish liquid. Background Information The outermost layer is the cell wall‚ which is present only in plant cells and is made up of a carbohydrate called cellulose and also has
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The Effect of Gray Water on the Growth of a Mongo Plant An Investigatory Project Presented to: Ms. Ailene Hijara Faculty of Science Department Statefields School Inc. In Partial Fulfillment of the Requirements for CHEMISTRY By: Jonnah Bianca Hugo Mariel Faith Defensor Riciel Camille Frigillana Gabriel Joshua Palma Jean Paolo Paglicawan Acknowledgment The researchers are heartily thankful to their Chemistry teacher‚ Ms. Ai Hijara‚ whose encouragement‚ guidance and support from the initial to
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Tuberculosis (TB) is a bacterial infection spread through inhaling tiny droplets from the coughs or sneezes of an infected person. It is a serious condition but can be cured with proper treatment. TB mainly affects the lungs. However‚ it can affect any part of the body‚ including the bones and nervous system. Typical symptoms of TB include: having a persistent cough for more than three weeks that brings up phlegm‚ which may be bloody weight loss night sweats high temperature (fever) tiredness
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identify an organism from a mixture of two unknown bacterial species. In order to accomplish this‚ I first plated my unknown mixture on Tryptic Soy Agar (TSA)‚ Columbia Naladixic Acid (CNA)‚ and MacConkey’s Agar (MAC) plates. After 48 hours of incubation‚ it was unclear that two different bacterial colonies had grown on my TSA plate. Only one type of colony was evident. However‚ it was apparent that I had successfully isolated two different bacterial species by examining my MAC and CNA plates. Only
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prepared for the experiment‚ one at room temperature and the other two at 15°C and at 5°C. The room temperature water bath was prepared by filling a basin with tap water about ¾ full so that when the subject’s face is submerged‚ the water will not spill. A thermometer was used in order to obtain the temperature of the water. The temperature obtained was at 26°C. The water baths having temperatures of 15°C and 5°C were also prepared the same way as the room temperature water bath only with the addition of
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The Effect of Physical Barriers On The Growth Of Polycephalum Nathan LHypothesis: The slime mould will attempt to bypass the barrier to reach the oats. Independent Variable: The path provided by the colored Lego blocks. Dependant Variable: The path in which the Polycephalum Constants: The size of the dish‚ the species of slime mold‚ the light the slime mold received‚ and the temperature it was kept. ] 1. After two days of growth‚ did P. Polycephalum connect the oats throught
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potato is one of major food tuber crops grown in Rwanda. It plays a key role in food consumption‚ nutritional security and reduction of hunger. Potato plant like other tuber crops requires sufficient supply of several essential elements for proper growth and function. It is a gross feeder and exploiting greater volume of soil nutrients including nitrogen‚ phosphorous‚ potassium and water. Potato production has become very important in Rwanda in terms of land cropped and income generated to the potato
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