Measuring the Water Status of Potato Tubers Objectives: Upon completion of this laboratory you should be able to: 1. determine the water potential of a plant tissue by the Chardokov and gravimetric techniques and understand the underlying theory. 2. determine the osmotic potential of a plant extract by the freezing point depression method and understand the underlying theory. 3. describe techniques for measuring the pressure potential of a plant tissue. 4. describe techniques for measuring
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Biology Exam Review Unit One – Biochemistry What is an isotope? Isotope - An isotope is all atoms of the same element that have the same number of protons‚ but they may have different numbers of neutrons in the nucleus. - This means that all atoms with the same atomic number can have different atomic masses. - Because they have the same number of protons and electrons‚ they behave exactly the same in chemical reactions. Radioisotope - The nuclei of some isotopes of an element are unstable
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Using Sucrose Solutions to Determine Osmolarity of Potato Tubers Based on Weight By Thomas Pelikan Biology 200A Section 004 Kimberly Schmidt October 2‚ 2012 Abstract: In this experiment we were trying to determine the osmolarity of potato tubers by weighing them before and after incubating them in solutions of sucrose with varying molarities. To find the osmolarity we took a potato and used a cork borer to obtain seven samples of potato tubers. We then prepared seven beakers with concentrations
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THE AFFECTS OF DIFFERENT SUCROSE SOLUTIONS ON OSMOSIS OF EGG MEMBRANES A laboratory report submitted for LE@D Biology 1004 Michele Liveley Arkansas State University Mountain Home Mountain Home‚ AR September 2013 Osmosis Egg Lab Report Introduction Osmosis is the passing of water or other solutions from an area of high concentration of particles to an area of less concentration. The cell membrane is an organelle‚ selectively permeable‚ and only
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The results provide evidence that when there was an increase in the sodium chloride concentration the mass of the potato prisms declined. At the zero percent concentration there was an increase of mass by 1.75%‚ from there the 1%‚ 3%‚ 5% and 10% begun on a downward trend with the percentage change in mass declining. The graph was on a steady decline from 0% being the highest point with a change of mass of 1.75% finishing with the 10% solution on a decline of -12.28%. From observing the scatter plot
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Project Potato Chips Contents The Study Potato Chips – The Product Production Process Current Market Situation South Caucasus market potential Market Penetration Risks and Threats Plant Configuration Equipment Plant Investment Raw Materials Financial Projections Benchmark The Study BDO LLP was engaged to examine and assess the feasibility study of a new potato chips plant in Georgia. Currently‚ the Georgian potato chips market is mainly dominated by foreign producers
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America’s Great Potato Baron Eric Schlosser’s biography “Fast Food Nation: Why the Fries Taste Good” explains how this invention started out of a simple potato by a man named John R. Simplot who was raised on a farm‚ un-educated and by his own account‚ left home at a young age. According to Eric Schlosser’s claim‚ “John Richard Simplot‚ America’s great potato baron‚ whose seemingly inexhaustible energy and willingness to take risk built an empire base on French fries” (Schlosser par. 2). The
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The Calvin and Hobbs comic strip portraying Hobbs’ new approach towards ethical behavior communicates a less vastly recognized point of view regarding the need for morals and justifies why in fact‚ people regard them as unneeded at all. Hobbs expresses a few ideas in the strip; “the ends justify the means” ‚ “might makes right‚ the winners write the history boxes” and “it’s a dog eat dog world”. The first idea‚ “the ends justify the means”‚ expresses a widely spread notion that in a materialistic
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The Effect of pH on Enzyme Activity A piece of Solanum tuberosum (potato) was removed and mixed with distilled water in a blender. The resulting solution was filtered through multiple layers of cheese cloth to filter out the liquid by eliminating any large pieces in the solution. The solution created was catechol. Five different solutions were prepared as blanks with each test tube containing 6.0mL of a different pH (pH 4‚ pH6‚ pH7‚ pH8‚ pH10) of phosphate buffer‚ 1.0mL of the enzyme and 1.0mL of
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TOY: MR. POTATO HEAD! Since the time of my childhood I have been exposed to hundreds of toys and games. However‚ only a few stand out in my memory and even fewer still remain in my possession today. There are many toys in America‚ which are known by all ages‚ nationalities‚ and social classes. Toys such as Barbie‚ Legos‚ Cabbage Patch Kids‚ GI Joe‚ and many more are well known commodities‚ which have been in existence since before my time. Although there are numerous toys I can remember
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