Diffusion and Osmosis Lab Introduction • What molecules can pass through a semi-permeable membrane? In this lab study we tested carbohydrates such as starch and glucose‚ as well as solutions like Benedict’s and Lugol’s to see if they would cross the membrane of a cell but since we can’t actually see that happen we used dialysis tubing (acts as the cell membrane). • My prediction was that glucose and Benedict’s could pass the semi-permeable membrane but starch and Lugol’s wouldn’t be able to
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Expirement 1 Fluid Properties: Density and Surface Tension Table of Contents: OBJECTIVE 1 THEORY 2-3 PROCEDURE 4-6 RESULTS 7-8 DISCUSSION AND CONCLUSION 9 APPENDIX 10 OBJECT: The object of this experiment was to determine the density of a fluid by performing three different methods and use that determined density to calculate the surface tension of the fluid. THEORY: The density of any substance is defined as the mass per unit volume and is denoted by ρ. ρ = m / V (1) m is the mass
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Theoretical Fluid Mechanics Module#1: 1 1. OBJECTIVE The purpose of this module is to investigate hydrostatic forces on a plane surface under partial and full submersion. 2 2. DESCRIPTION The apparatus shown in Figure 1 will be used. It consists of a quarter circle block attached to a cantilevered arm with a rectangular surface on the other end. The pivot point on the arm corresponds to the center of radius of the block. With no water in the tank‚ and no weights on the
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Introduction Diffusion and osmosis are two types of passive transport. Diffusion is a random movement of molecules from an area of high concentration to an area of low concentration. Osmosis is a type of diffusion that diffuses water through a selectively permeable membrane. There were two parts to the experiment‚ the dialysis tubing lab and the potato lab. In the first experiment‚ the dialysis tubing acted as a semi-permeable membrane. A semi-permeable membrane is a membrane
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Answers to Questions Activity 1: Simulating Dialysis (Simple Diffusion) (pp. 2–4) 9. All solutes except albumin are able to diffuse into the right beaker. Using distilled water in the right beaker and either the 100 MWCO or 200 MWCO membrane will remove urea from the left beaker and leave albumin If the left beaker contains NaCl‚ urea‚ and albumin‚ you can selectively remove urea by dispensing a concentration of NaCl into the right beaker equivalent to that in the left beaker and by using
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rates have been observed to depend on aspect ratio ~ depth/width ! rather than the absolute feature size. 1 Several mechanisms have been invoked to explain the ‘‘rule’’ of aspect-ratio-dependent etching ~ ARDE ! ‚ but no general theory has emerged that captures the variety of seemingly conflicting experimental observations reported in the literature. 1‚2 For example‚ while an ion-neutral synergy model with pure neutral flux shadowing appears to be con- sistent with a wealth of
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How does diffusion affect the rate of growth? If I placed a gummy bear in various solutions‚ then the gummy bear would change in size‚ because diffusion and osmosis cause the gummy bear to react to the solution’s molecules‚ and further affects the gummy bear’s mass. An experimental lab conducted in class was tested‚ essentially to observe the effects of diffusion/osmosis. More specifically‚ according to‚ “merriam-webster.com/dictionary/diffusion‚” the process of diffusion causes particles to spread
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IEOR E4707: Financial Engineering: Continuous-Time Models c 2009 by Martin Haugh Fall 2009 Black-Scholes and the Volatility Surface When we studied discrete-time models we used martingale pricing to derive the Black-Scholes formula for European options. It was clear‚ however‚ that we could also have used a replicating strategy argument to derive the formula. In this part of the course‚ we will use the replicating strategy argument in continuous time to derive the Black-Scholes partial
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on the results by varying different variables such as selling price‚ variables cost‚ etc. This altering of variables to determine the net effect of changing original estimates is called sensitivity analysis. Using the computerized application of CVP‚ managers can study various combinations of ‘changes in selling price‚ fixed and variables and assess their effect on profit’ (SWTAFE‚ 2012). Based on the CVP analysis of the three business plans provided by Digital Ltd‚ I would like to recommend the
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Made in Ceylon HAYLEYS EXPORTS PLC ANNUAL REPORT 2011-2012 FINANCIAL HIGHLIGHTS NOTICE OF MEETING GRAPHICAL REVIEW CORPORATE INFORMATION INFORMATION TO SHAREHOLDERS CHAIRMAN’S REVIEW 1 2 3 4 6 7 10 9 CONTENTS MANAGING DIRECTOR’S REVIEW PROFILES OF DIRECTORS STATEMENT OF DIRECTORS’ RESPONSIBILITIES CORPORATE GOVERNANCE 11 13 19 22 23 24 25 26 27 28 47 49 ANNUAL REPORT OF THE BOARD OF DIRECTORS ON THE AFFAIRS OF THE COMPANY AUDIT COMMITTEE REPORT INCOME STATEMENT BALANCE SHEET INDEPENDENT
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