Investigating the effects of carbohydrates on blood glucose levels INTRODUCTION There are two types of diabetes which includes diabetes inspidus however the disorder most commonly associated with the generic term ‘diabetes’ is diabetes mellitus. Diabetes mellitus is condition whereby blood sugar levels are far too high due to poor metabolism. There are two variations of the disorder which are Type 1 and Type 2 Diabetes Mellitus. Type 1 diabetes occurs as a result of the body’s inability to produce
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The Effect of Osmosis on Potatoes/ Diffusion of Molecules through Benedicts Test of Dialysis dubing Introduction The focus of the lab on September 16‚ 2013 was Diffusion and Osmosis. Osmosis is a process in which the molecules of a solvent diffuse from an area of high concentration to an area of lower concentration‚ through a semipermeable membrane. Small solute molecules and water molecules can move freely through a selectively permeable membrane‚ but large molecules may pass through more
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Alisha Prakash Biol 111-513 The Properties of Water; Osmosis and Diffusion Hypothesis: When animal and plant cells are placed in a solution‚ the movement of water is effected by the solute concentration of the solution. If animal and plant cells are placed in a more concentrated solution‚ the solution becomes hypertonic to the cells‚ causing water to exit the cells. This changes the appearance of the cells‚ causing the cells to look darker (more concentrated) and shriveled up. Null Hypothesis:
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Section November 7‚ 2012 Abstract The effect of water and fertilizer on corn seedlings was examined. It was hypothesized before the experiment that enough water with sunlight and air should make the plants grow healthy. It has to do with photosynthesis. Fertilizer is also going to make the plants grow much faster; this is because of the nutrients in it. The experiment took about four to six weeks to complete; it took some days for the seed to germinate before planting. The corn was growing there were
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Natalia Wierzchon A.P. Biology Lab: 1. Osmosis 09/10/2010 I. Introduction a. Purpose: The purpose of this lab was to observe the diffusion process of water‚ osmosis‚ as well as create an understanding of water potential‚ the basis of osmosis. The experiment proved how water molecules in a solution are able to move from an area of low solute concentration‚ high water concentration‚ to an area of high solute concentration‚ low water concentration‚ diffusing “down” the water gradient.
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Diffusion and Osmosis lab Results: Figure 1a-rate of weight change in 15 min intervals of each concentration. The first tube showed very little weight change. However all other tubes show a greater change the concentration could be the factor that determines the permeability of the sucrose. The sucrose molecules are too large to pass through. Figure 1b- sucrose concentration determines the weight change. In this case based on our results as concentration increases the percent weight change
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Experiment #4 (10/31/14) Lab Review Objective To introduce the basic molecules of life and to test for their presence in different substances. Introduction Macromolecules are in all forms of life. These organic compounds are carbohydrates‚ lipids‚ proteins‚ and nucleic acids. These are monomers and they link together into long chains that form polymers. Different reagents can be used to find the presence of these macromolecules. Proteins are made of carbon‚ hydrogen‚ oxygen‚ nitrogen‚ and sometimes
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Controlled Assessment: Osmosis of a Potato [pic] Osmosis: Osmosis is the movement of substances through a partially/semi permeable membrane from an area of high concentration to an area of low concentration to balance of the concentration of the two sides. Biological membranes do allow water to pass through‚ but water will have no net movement unless osmosis takes place. Preliminary Method I have chosen to investigate the factor of the weight of potato strips after set amounts of time
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Experiment for the measurement of carbon dioxide and oxygen concentrations and their functions during the act of breathing. Introduction: Humans‚ like all living organisms need‚ O2 in order to live‚ they take the necessary O2 from the atmospheric air. The O2 is transferred from the blood to all cells of the body and serves for oxidation of nutrients for example glucose. By oxidize the nutrients released energy‚ which is necessary for the functions of the human body. During oxidation produces
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Zimmermann · J. Büchs Glucose oxidation by Gluconobacter oxydans: characterization in shaking-flasks‚ scale-up and optimization of the pH profile Received: 20 September 2002 / Revised: 3 December 2002 / Accepted: 6 December 2002 / Published online: 26 February 2003 Springer-Verlag 2003 Abstract In this study‚ the advantage of a novel measuring device for the online determination of oxygen and carbon dioxide transfer rates in shaking-flasks is reported for glucose oxidation by Gluconobacter
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