Abstract This investigation was undertaken in order to observe the effects of changing the temperature of the solution that a potato cube is placed in. The temperatures that were tested in this investigation were 0°C‚ 20°C (room temperature)‚ and 70°C. This investigation tested the hypothesis: The rate of osmosis will increase as the temperature increases 2x2x2cm cubes of potato were weighed and then placed into 100mL of 10% NaCl solutions for 10 minutes. After 10 minutes the cubes were again
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Effects of Different Concentration of Catalyse on Hydrogen Peroxide Aim: In this investigation I will try to find how long it takes for the filter paper disc to rise up whilst varying the amounts of concentration of catalyse. Prediction: I predict that the lower the concentration of catalyse the longer it will take for the filter paper disc to rise to the surface of the tube. Equipment: 1. Hydrogen peroxide in a container 2. Flat bottom tube 3. Tweezers 4. Filter paper
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oxidative and substrate level phosphorylation? Oxidative phosphorylation is a metabolic pathway that uses energy released by the oxidation of nutrients to produce ATP. Oxidative phosphorylation uses the electrochemical gradient‚ set up by the oxidation of nutrients‚ of protons across the inner mitochondrial membrane to generate ATP from ADP. During oxidative phosphorylation‚ electrons are transferred from electron donors to electron acceptors such as oxygen‚ in redox reactions of the electron
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Experiment 2: Estimation of protein concentration Introduction Protein assays are designed to measure the total protein in a solution. Protein assays are quantitative if the protein to be assayed is available in sufficient quantity such that one is able to use it to create a standard curve. If this cannot be achieved‚ then a standard protein‚ such as albumin‚ may be used for a standard curve with the understanding that the results on the unknown protein are semi-quantitative. Since most proteins
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Direction and concentration gradients Bradley Benton ABSTRACT In this experiment‚ we will investigate the effect of solute concentration on osmosis. A semi‐permeable membrane (dialysis tubing) and sucrose will create an osmotic environment similar to that of a cell. Using different concentrations of sucrose (which is unable to cross the membrane) will allow us to examine the net movement of water across the membrane. INTRODUCTION A major determinant of diffusion in a biological system is membrane
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IS Concentration and Career Analysis Introduction Coming from a family that owns a small business‚ I decided to pursue a degree in business administration with concentration in management and marketing. By the time I graduated from college‚ I realized how important it is to implement information technology into a small business like ours. Our competitors have created online shopping websites which result in increasing sales and expanding territories. It would be cost insufficient for us to hire
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was observed to be exothermic. As sodium chloride and ammonium chloride was observed to be endothermic‚ those two salt substrates was not used in the experiment as the goal of the experiment was to increase temperature‚ not decrease it. Additionally‚ health hazards of the products made by each substrate reacting with water was researched. The 2016 cost per gram of each substrate was given by the instructor. To start the experiment‚ 10g of sodium acetate‚ sodium carbonate‚ calcium chloride‚ and lithium
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Emily Rasichanh Essay 4 Professor Marshall November 9th‚ 2012 How was it like at Auschwitz’s Concentration Camp? “Why is it that nobody cries out‚ nobody spits in their faces‚ nobody jumps at their throats? We doff our caps to the S.S. men returning from the little wood; if our name is called we obediently go with them to die‚ and—we do nothing. We starve‚ we are drenched by rain‚ and we are torn from our families. What is this mystery? This strange power of one man over another? This
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The Effect of Electrolysis On the Height Increase Rate Of the Palay Plant A Scientific Investigatory Project Presented to the Faculty of the University of St. La Salle Integrated School Bacolod City In Partial Fulfillment of the Requirements of the Subject Science 10 Chemistry By: Ablan‚ Victor Emmanuel P. De la Peña‚ Percival A Penado‚ Keith Nealson M. Puey‚ Patrick Anthony A. Villamor‚ Rex John Theodore Y. 10E i i Acknowledgement In this study‚ the researchers were
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World War II brought up many ethical issues. One of these was the ethical treatment of prisoners. As the Allied forces pushed into Nazi territory and came upon the concentration camps‚ the true horrors of World War II were seen. Dachau Concentration Camp in Southeast Germany‚ was the first of the concentration camps built by the Nationalsozialistische Deutsche Arbeiterpartei ‚ commonly referred to as the Nazi party. At the camp‚ the prisoners were forced to do hard labor and were unjustly executed
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