treated potatoes." In short‚ it’s a potato powered battery‚ and it’s as real as you’re hoping it is. The simple‚ sustainable‚ robust device can potentially provide an immediate inexpensive solution to electricity needs in parts of the world lacking electrical infrastructure‚ but we’re hoping that it can work a similar amount of magic for developed nations as well. Researchers at the Hebrew University discovered that the enhanced salt bridge capability of treated potato tubers can generate electricity
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3%‚ was diluted using 10 mL of hydrogen peroxide and 20 mL of water. In the second beaker‚ a ¼ dilution of potato extract was made using 2 mL of potato extract and 6 mL of water. The third plastic beaker contained 8 mL of water. Using the first and second beaker the experimental assay was performed. Using forceps a small paper disk was dipped into the second beaker containing the potato catalase for exactly 5 seconds. It was next dried on a paper towel for 5 seconds‚ and finally placed at the
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Abstract: Osmosis is the transport of water across a selectively permeable membrane from a region of a higher water chemical potential to a region of lower water chemical potential. (Tzahi 2006) To demonstrate osmosis lab‚ artificial cells were made with various sucrose concentrations and were placed into beakers of different sucrose solutions. Overall the results showed that the higher percentage of concentration gradient of sucrose‚ the more the artificial cells absorbed. Introduction: The
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Straight blades produce regular chips while rippled blades produce ridged potato chips. * 5 The slices fall into a second cold-water wash that removes the starch released when the potatoes are cut. Some manufacturers‚ who market their chips as natural‚ do not wash the starch off the potatoes. Color treatment * 6 If the potatoes need to be chemically treated to enhance their color‚ it is done at this stage. The potato slices are immersed in a solution that has been adjusted for pH‚ hardness
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Osmosis Lab Report by Evan Gerber Claire Cambron First Lab Report Wednesday 10:30am February 20‚ 2013 Theresa Gburek Abstract The major objective of the experiment was to test the effect of the concentration gradient on the diffusion rate. It was hypothesized that the greater the stronger the concentration gradient‚ the faster the rate of diffusion would be. To test this‚ dialysis tubes were submerged in different concentration fructose solutions. We weighed the tubes at specific
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When the Irish Potato Famine Struck Ireland On a sunny morning in 1845‚ Irish farmers were going to check their crops. A farmer named Abraham Fitz found black potatoes in his fields. He thought it may be only the one‚ so he moved over 4 rows and dug another potato out of the ground. This one was black and rotten. This causes Abraham to travel to his neighbors house and ask about their potatoes. His neighbor’s potatoes were black‚ rotten‚ and giving off a foul stench. This would later be discovered
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answers.com/Q/What_enzyme_is_present_in_liver_and_potatoes#slide2 What Is the Optimum PH for Catalase - Ask.com. (n.d.). Retrieved October 29‚ 2013‚ from http://www.ask.com/question/what-is-the-optimum-ph-for-catalase What is the optimum PH for potato catalase and why? - Yahoo! Answers. (n.d.). Retrieved October 29‚ 2013‚ from http://answers.yahoo.com/question/index?qid=20071201155345AADgypg Retrieved October 29‚ 2013‚ from http://www.fmcchemicals.com/Portals/chem/content/docs/engineering/Properties%20of%20Hydrogen%20Peroxide
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Potato Chip Monopoly ECO204: Principles of Microeconomics Instructor: A monopoly is an industry composed of only one firm that produces a product for which there are no close substitutions and in which significant barriers exist to prevent new firms from entering into the industry (Case‚ 2009). In a different definition‚ it can be distinguished by a lack of financially viable competition to produce the goods or services as well as to substitute goods. Monopolies often refer to a procedure
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Osmosis Osmosis is just a special case of diffusion - where water diffuses through a membrane which has different concentrations on either side. Permeable means "allows anything to pass through". Membranes in cells allow small molecules (water) to pass through‚ but prevent bigger ones from passing. This is called "selectively permeable". Take a look at the following animation; If a selectively permeable membrane separates the two solutions‚ water moves through it in both directions at
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The purpose of this lab was to observe the rate of osmosis and diffusion‚ as well as the effect of molecular size of the particles on this rate. Part I of the lab was a demonstration of osmosis and diffusion‚ that dealt with raisins in different liquid environments‚ each with a different concentration of sugar. Part IV of the lab was using the same idea as the demonstration‚ by putting objects in different concentrations of a substance; in this case elodea leaves in salt water. In both cases‚ the
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