Diffusion and osmosis go hand-in-hand. Osmosis is generally the same as diffusion‚ however‚ deals solely with water. Osmotic pressure is the pressure of a solution against a semi-permeable membrane to prevent water from flowing into the membrane. In this lab‚ we are going to study tonicity; tonicity is the measure of this osmotic pressure and is the differential of pressure between two solutions separated by a selective membrane. To help identify the relative concentrations of solute particles of different
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amylase solution Methods The lab group prepared amylase dilution in the first set of test tubes (1-5). 5mL amylase was added to a test tube already containing 5mL distilled water creating the first tube to have .5% amylase. Next 5mL of amylase from test tube 1 was added to the 5mL of distilled water in test tube 2‚ giving test tube 2 a dilution of .25%. This was
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AMDG THE RATE OF PHOTOSYNTHESIS The Factor of Carbon Dioxide I. Introduction In this lab‚ the rate of photosynthesis will be measured by manipulating a variable that is needed for the process of photosynthesis. Photosynthesis is the process by which plants use light energy‚ carbon dioxide‚ and water to produce oxygen and glucose. This release of products provides the necessary nutrients for all forms of life. In water‚ leaves‚ usually float in water due to the gases such as carbon dioxide and
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characteristics. This will allow better targeting of drugs‚ which would have a great impact on medicine for a variety of disorders. Works Cited 1. BI 108 Section D2. 2011. Principles of Biology II. Biology Department‚ Boston University‚ Boston‚ MA. 2. Gardner KE and Godrick EC (eds). 2011. Principles of Biology II. Hayden-McNeil‚ LLC‚ Plymouth Michigan. Module # 3‚ pp 41-64. 3. GraphPad. 2009. t test calculator. Website: http://www.graphpad.com/quickcalcs/ttest.cfm. Accessed Feb 14‚ 2011. 4.
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body fat. If your body doesn’t receive enough water‚ it will take water from other areas and this causes the blood to thicken. Plants also need water to grow and survive. Plants also need water for photosynthesis‚ to be able to create their food. The water travels up to the plant’s stem‚ where photosynthesis takes place. Water is
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significance of mitochondrial toxicity testing in drug development. Drug Discovery Today. 12(18): 777-785. Galbraith‚ D.W.‚ D.P. Bourque & H.J. Bohnert. 1995. Isolation and fractionation of plant mitochondria and chloroplast. Methods in Cell Biology. 2: 161-173. Gross‚ V. S.‚ H. K. Greenberg‚ S. V. Baranov‚ G. M. Carlson‚ I. G. Stravovskraya‚ A. V. Lazarev & B. S. Kristal. 2011. Anal Biochem. 418(2): 213-223. Labbe‚ G.‚ D. Pessayre & B. Fromenty. 2008. Drug-induced liver injury through
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Title: Enzyme Catalysis of Hydrogen Peroxide by Catalase Problem and Objectives: How do different temperatures and different levels of pH affect the reaction rate of the enzymes in chicken liver? Demonstrate the activity of an enzyme in living tissue‚ observe the effects of changes in temperature and pH on the activity of an enzyme‚ perform analyses for the presence of an enzyme in tissues‚ and analyzing relationships between environmental conditions and enzyme activity. Background: Cells produce
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Put simply‚ photosynthesis is the process of converting light energy into chemical energy and storing it in the bonds of sugar. Photosynthesis comes from the Greek language and literally means “Light Composition” or “Putting Together Light.” Photosynthesis generally takes place in plants‚ however it also takes place in algae and many species of bacteria. In photosynthesis‚ light energy is converted to chemical energy and the chemical energy is then stored in the form of glucose‚ or sugar. Carbon
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CHEMISTRY LAB REPORTS How to Write a Lab Report Lab Reports gives the explanation of the experiment done Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. If your instructor gives you an outline for how to write a lab report‚ use that. Here ’s a format for a lab report you can use if you aren ’t sure what to write or need an explanation of what to include in the different parts of the report. A lab report is how you explain what you did
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Yeast Lab Report Guidelines 1. Lab reports are to be computer-generated and double-spaced. All sections of the report must be written in paragraph form. 2. Do not use encyclopedias (Internet or otherwise)‚ dictionaries ((Internet or otherwise)‚ or personal web pages as sources for the report‚ this includes Wikipedia. You may use a textbook‚ lab manual‚ and/or article(s) in a published journal. You can find journal articles by going to the library website: http://www.lib.clemson.edu/ and selecting
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