THE EFFECT OF THE WATER CONCENTRATION GRADIENT ON THE RATE OF OSMOSIS Investigation Folio: Summative Stage 1 Biology: SEMESTER 1 2014 MARCIA SHAW - 151003X INTRODUCTION Diffusion: is when something spreads more widely from a higher concentration gradient to a lower concentration gradient. Diffusion is the process from which molecules‚ atoms or ions mingle together and move from an area of high concentration to an area of low concentration as a result to their kinetic energy. for example
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Traffic Volume Studies Traffic Volume Studies • Engineers often use counts of number of vehicles or pedestrians passing a point‚ entering an intersection‚ or using a particular facility such as travel lane‚ crosswalk or sidewalk. Counts are usually samples of actual volumes‚ although continuous counting is also sometimes performed. Manual Observation Typical equipment needed for manual counts are: Tally Sheets‚ or • Mechanical Count Boards‚ or • Sampling periods may range from
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For this experiment you will need 39 agar plates‚ sterile cotton swabs‚ a concentrated amount of Escherichia coli (E. coli)‚ three different levels of antibiotic (Ampicillin: 1mg‚ 5mg‚ and 10mg)‚ a bunsen burner‚ metal tweezers‚ an incubator‚ 27 broths‚ and a ruler which should all be provided through your laboratory. For the first generation‚ you will be using 12 plates. Three of the plates will be labeled G1 control‚ three of the plates will be labeled G1/1 mg‚ three plates will be labeled G1/5
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light-year distant from Gizmo. Alpha replies that it is only half as far from Gizmo but is approaching the planet at half of Beta’s speed. Which spaceship will reach Gizmo first? a. Alpha. b. Beta. c. Both spaceships will arrive at the same time. d. Cannot be determined. 3. Which of the three designs a‚ b or c comes next in this series? a. b. c. 4. "THIS STATEMENT IS FALSE" Which of the following applies to the above statement? a. True b. False
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Michelle Yeung Bio 101 Cyrus MacFoy June 16‚2015 Diffusion and Osmosis Exercise I. Molecules are always in constant movement. Molecular motion is a form of energy‚ the kinetic energy of molecules. The Brownian movement is the movement of small particles caused by the bombardment of the particles by millions of water molecule. This movement will continue indefinitely as long as there is water. My prediction for this lab is the solution of the water is hypertonic meaning there is a higher concentration
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Traffic Volume Study Road-Traffic Studies Part One CE-452 TRANSPORTAION ENGINEERING SESSIONAL II Traffic Volume Survey List of Content 1. Introduction 2. Scope and Objectives 3. Methodology 4. Data collection 5. Data analysis 6. Conclusion Chapter One Introduction 1.1. Traffic Survey: Traffic engineers and planners need information about traffic. They need information to design and manage road and traffic system. They use the information for planning and designing
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Relating Mass and Volume Question: What does mass have to do with the amount of space (volume) a liquid occupies? Hypothesis: I believe that the mass and volume is related because they both rely on each other for their purpose. If we fill the cylinder to a certain measurement (volume)‚ then the mass will grow with it. There is a balance. Materials: - Distilled water - Corn syrup - Saturated solution of salt water - Triple beam balance - 150 mL (or larger - Small plastic pipette - 150 mL beaker
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Diffusion and Osmosis Diffusion -the process by which molecules spread from areas of high concentratiion‚ to areas of low concentration. When the molecules are even throughout a space - it is called EQUILIBRIUM DIFFUSION Concentration gradient - a difference between concentrations in a space. Molecules will always move down the concentration gradient‚ toward areas of lesser concentration. Think of food coloring that spreads out in a glass of water‚ or air freshener sprayed in a room
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Aesthetics is the study of the mind and emotions in relation to the sense of beauty. This philosophy is very well explained in Virginia Postrel¡¯s essay‚ ¡°Surface and Substance¡±. In the essay‚ Postrel challenges the separation of surface and substance with examples of acts of consumptions‚ which she describes as an engagement with beauty. There are many reasons that drive people towards consumptions. It is important to be socially accepted‚ even if it requires changing the way one looks. Some
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Agar and Media Preparation— Agar plates containing King’s B Agar were often used throughout the experiment to support growth of Pseduomonas fluorescens. A recipe was used that included a mixture of 10g Proteose Peptone #3‚ 1.5g Potassium Phosphate Dibasic (K2HPO4)‚ 30ml 50% Glycerol‚ ~965ml water and 20g agar. The mixture‚ post- autoclave‚ was left to cool and 5ml 1M Magnesium Sulfate (MgSO4) was added and created about 40 plates. King’s B Medium was made using the same procedure as the King’s B
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