(1) Answer to Question in lab manual. NO introduction/background etc. 1. What is the retention time for caffeine? Retention time for caffeine : 4.149+4.142+4.152+4.1454 = 4.15 2. What is the retention time for benzoic acid? Retention time for caffeine : 2.651+2.817+2.857+2.9274 = 2.81 3. How are the retention times for caffeine and benzoic acid related to their chemical structure and the nature of the chromatographic
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Science and Mathematics Department of Biological Sciences In partial fulfillment of : BIOLOGY 101.1 (Scientific Paper on Diffusion) Submitted by : Diate‚ Kim P. (B.S.E Gen.Sci.1) Submitted to : Olive S. Anies‚ Ph.D ABSTRACT This scientific paper investigates my hypothesis that "Higher molecular weight produce faster diffusion". Diffusion is a process of equalization which involves movement of molecules from an area of high concentration to an area of low concentration
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Name: Marion Paxton Diffusion Lab Introduction: In this lab you will observe the diffusion of a substance across a semi permeable membrane. Iodine is a known indicator for starch. An indicator is a substance that chances color in the presence of the substance it indicates. Watch as your teacher demonstrates how iodine changes in the presence of starch. **Prelab Observations: Describe what happened when iodine came into contact with starch. The cornstarch turned blue-black Procedure:
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Occurrence of Osmosis and Diffusion in Artificial and Living Cells | David Michael | March 24‚ 2011 | Partners: Fady Guirguis‚ Klaus Blandon‚ and Mauricio Rodriquez. | | * Table of Contents I. Abstract 3 II. Introduction 4 III. Materials and Methods 9 IV. Results 15 V. Discussion 18 VI. Works Cited 23 * Abstract This lab focuses on the understanding of osmosis and diffusion in a practical sense. It allows the conductor to see what factors affect diffusion and osmosis. This
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Chromosome 6 Robin Cook’s book Chromosome 6 is about organ transplantation and the possible dangers that could arise if the organs became tradable commodity‚ but before reading the book we had no idea what it was going to be about. Biotechnology was not a subject us two girls knew a lot about. Hearing the word biotechnology we thought of cloning‚ lab work‚ and experiments. Little did we know that it is much more complex than we thought. Biotechnology deals with crops to animals‚ fruit‚ milk‚ and
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regulate heart rate. Sympathetic increases the heart rate whereas Parasympathetic decreases the heart rate. 4) What do you think would happen to the heart rate if the vagus nerve was cut? The heart rate will increase and return back to the 100 bpm. Lab Questions: 1) Cardiac muscle does not
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Practical to Investigate Diffusion and Osmosis Collect the following equipment: 1x beaker 1x length visking tubing 1x pipette 1x pair safety glasses Instructions – always wear safety glasses! 1. Fill your beaker ¾ full with water 2. Tie a knot in one end of your visking tubing 3. Using your pipette‚ transfer some concentrated sugar solution to the inside of the visking tubing‚ leaving enough space to tie a knot in the open end 4. Add a few drops of red food colouring to the inside of the visking
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12 Mar 2012 Technological Diffusion During the European Renaissance The innovations discussed here represent revolutions in warfare‚ society‚ and art that saw a rapid diffusion through the societies of Europe during the renaissance for varying reasons. Whether for survival‚ economic gain‚ or aesthetic pleasure they were eventually embraced throughout Europe laying down some of the bedrock that modern western society would be built on. The spread of firearms throughout renaissance Europe had
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potential to improve the • What is health information technology? • Quality and health information technology • Current status of health information technology • Efforts to encourage faster diffusion quality‚ safety‚ and efficiency of health care. Diffusion of IT in health care is generally low (varying‚ however‚ with the application and setting) but surveys indicate that providers plan to increase their investments. Drivers of investment in IT include the promise
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EXERCISE 6: CARDIOVASCULAR PHYSIOLOGY |ACTIVITY 1: Investigating the Refractory Period of |Answers | |Cardiac Muscle | | |Which of the following types of muscle tissue can depolarize spontaneously in the |C- Cardiac Muscle
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