Emily K 20 August 2013 Diffusion Lab Research Question: How does the amount of water in a beaker affect the rate at which food coloring diffuses to the bottom of the beaker? Independent Variable: Height of water in beaker (Inches) Dependent Variable: Rate of diffusion (seconds) Controlled Variables: * Size of beaker * Temperature of water (23°C) * Type/color of food coloring * Person Timing * Environmental conditions Materials: * Beaker(well over 4 in tall) * Food
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Rate of Osmosis vs Solute Concentration Introduction: In nature‚ the quest to reach equilibrium‚ or the state of rest or balance due to the equal action of opposing forces (http://www.dictionary.com). Osmosis and diffusion are two ways that cells reach this equilibrium‚ without exerting energy. Due to the unique nature of the phospholipid bilayer‚ small molecules can pass through the semipermeable membrane easily‚ through diffusion (https://www.biologycorner.com). Water‚ however‚ has a slightly more
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including diabetes mellitus‚ leucopenia‚ orthostatic hypotension‚ HIV‚ and end stage renal disease. She had all toes amputated on he left foot and an index finger on her left arm. Mrs. P. V. is also a dialysis patient‚ who visits Inpatient Dialysis Unit at the SGMC. She was sent to the ED from Inpatient Dialysis Unit for altered mental status with somnolence‚ low blood pressure‚ and hypothermia. According to daughter‚ who was at the bedside‚ the patient started being somnolent‚ confused‚ and having a poor
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Simple Diffusion Activity 1: Simulating Simple diffusion 1. What is the molecular weight of Na+? 22.99 or 23 2. What is the molecular weight of Cl-? 35.45 3. Which MWCO dialysis membranes allowed both of these ions through?50‚100‚ 200 4. Which materials diffused from the left beaker to the right beaker? Urea‚ NaCl and glucose diffused 5. Which did not? Why? Albumin was too large to diffuse into the right beaker. Activity 2: Simulating Dialysis 6. What happens to the urea concentration
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"Diffusion - How atoms move through solids" Diffusion means mass transport by atomic motion. The mechanisms of Gases & Liquids is known as random (Brownian) motion and for solids is known vacancy diffusion or interstitial diffusion. Simply we can define diffusion as‚ the movement of particles in a solid from an area of high concentration to an area of low concentration‚ resulting in the uniform distribution of the substance. (Diffusion chapter 5‚ 2008‚ p.1) Ronald D. Kriz(1999) suggests that
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Introduction: The objective of this experiment is to demonstrate osmosis by using an egg as a model. In order for this to happen the vinegar will make the eggs shell disappears. The reason for this is because vinegar has acetic acid and the shell has calcium carbonate‚ when these come into contact it produces carbon dioxide. This is the reasoning for the little bubbles when the egg is first put into the vinegar. After the shell discinigrates it will become rubbery from the acetic acid‚ at this
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Osmosis Osmosis is a special example of diffusion. It is the diffusion of water through a partially permeable membrane from a more dilute solution to a more concentrated solution – down the water potential gradient) Note: diffusion and osmosis are both passive‚ i.e. energy from ATP is not used. A partially permeable membrane is a barrier that permits the passage of some substances but not others; it allows the passage of the solvent molecules but not some of the larger solute molecules. Cell
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Bookstore. Gropello‚ E. D.‚ Tan‚ H. W.‚ & Tandon‚ P. (2010). Skills for the Labor Market in the Philippines. The World Bank Publications. Hechanova‚ M. R.‚ & Franco‚ E. P. (2005). The Way We Work: Research and Best Practices in Philippine Organizations. Manila‚ Philippines: Ateneo De Manila Press. Sison‚ P. S. (1991). Personnel and Human Resources Management. Quezon City‚ Philippines: Rex Printing Company‚ Inc. FOREIGN Literatures Fuller‚ C.‚ & Taylor‚ P. (2008). A toolkit of motivational
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Abstract - The experiments done in class served for multiple purposes. It helped identify that diffusion is the shifting of molecules from one part to another that takes no energy‚ and that osmosis is just the flow of water through the cell membrane. The main purpose of the first experiment was to examine the movement of H2O and other materials in living and simulate systems. This was done through the dialysis tubing to mimic the cell membrane and measure the change of mass inside the tube filled with
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The analysis of majors issues of AMP Incorporated AMP Incorporated‚ one of the largest manufacturers of connector and interconnect device‚ started in 1941‚ experienced several rounds of fluctuation and grew up with the bloom of U.S. economy. Literally‚ AMP could be seen as the leader and the guideline of the electrical industry. However‚ there does not exist a forever winner in business world. The rapidly changing environment‚ complex condition and intense competition may influence the result of
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