Osmosis and Water Potential Year 11 Emary Venter INTRODUCTION: The cell is the basic unit of living things‚ and is made up of multiple organelles. Organelles are membrane bound subdivisions‚ each specialised for a specific function. This experiment looks at the Plasma Membrane‚ which is a semipermeable layer surrounding the cell. It’s primary job is to control what goes in and out of the cell. Molecules can move across this membrane in either an active movement or a passive movement
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Today I found my LOC story at the pool. We had a bunch of things going on today such as master swim‚ swim lessons‚ lap swimming‚ and recreational swimming for the kids. I stopped by to talk with Pamela Harvey‚ one of our parents who consistently has her kids in swim lessons. I was happy to see her registered again for lessons. This time when I saw her‚ I asked why she registers and stays a member of the Y. It’s funny because she said exactly what I would want her to say. She explained that she loves
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Catie Park Professor Aaron Krall English 161 12 March 2013 Mythbuster: Are Suburbs Really Cleaner than Cities? The beautiful scenery of American suburbs persuades us that suburbs are cleaner than cities. Since greenery is more visually attractive than brownness filled with mobs of people and congestion‚ this claim must be true. Well‚ is it? Edward Glaeser and David Owen attempt to bust this myth through their works‚ Triumph of the City and Green Metropolis. They defy the myth and claim that
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The importance of job descriptions is that it helps potential candidates to know what is expected of them and how they will be evaluated within the interview process. With job descriptions it can be of great value to employers as it helps them to relate potential candidates back to the job role and see if they fit well with the description of the ideal candidate they are looking for. Job descriptions are very useful for both Tesco and the potential candidates who are applying for the vacancy as it
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Market Potential Indicator Purpose of Indicator As the name states‚ it is a measure of the market potential of a country using several dimensions‚ ratings‚ indexes and percentages. Currently‚ emerging economies comprise more than half of the world’s population‚ account for a large share of world output and have very high growth rates‚ which mean an enormous market potential. With global marketing becoming more important‚ companies and marketers are attempting to determine which international
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685N and your belongings have a weight of 915N. How much work does the elevator do in lifting you and your belongings 5 stories (15.2m)? Solution: W= (685N+915N) (15.2m) W= (1600N) (15.2m) W= 24‚320Nm or J Section 2 Gravitational Potential Energy: 6. A 0.15kg ball is thrown 9.0m straight up. What is the work done by the gravitational force? And what is the change in PE? (Notice anything?) Solution: PE= m*a*h PE= (0.15kg) (9.8 m/s^2) (9.0) PE= 13.23 kg m^2/s^2 or J - The
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Resting membrane potentials Definition: Large nerve fibers when not transmitting nerve signals is about 90 millivolt. That is‚ the potential inside the fiber is 90 millivolts more negative than the potential in the extracellular fluid on the outside of the fiber. The Na+-k+ pump also causes large concentration gradients for sodium and potassium across the resting nerve membrane. These gradients are the following: Sodium ( outside): 142 mEq/L Sodium ( inside): 14 mEq/L Potassium ( outside):
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Swimming Swimming is the act of moving through the water by using the arms‚ legs‚ and body in motions called strokes. The most common strokes are the crawl‚ backstroke‚ breaststroke‚ butterfly‚ and sidestroke. Some scientists believe that human beings are born with an instinctive ability to use their arms and legs to stay afloat. That instinct‚ however‚ disappears within a few months after birth. Later in life many children and adults learn to swim in order to be safe around
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Bio-fuel Industry in Pakistan Analysis of Pakistani Industries This report aims to present a detailed overview of biofuels and also aims to highlight the potential for developing bio-fuels based on the vast agricultural resources available to Pakistan. Omer Butt Institute of Business Administration‚ Karachi 12/29/2011 Preface This report aims at critically analyzing the Biofuels industry and the extent to which research is being conducted to develop biofuels that would be economically
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Mums and Bubs swimming lesson sessions are designed for babies aged between 6 and 24 months. Mothers or fathers go into the pool with the babies. Not every swim school will offer these lessons. So ring around and pick the one that you are most comfortable with. Make sure that all the lessons are conducted by a qualified instructor. In Australia these sessions are usually called ’Mums and Bubs Swimming Lessons’. Dads if you are reading this‚ it should not discourage you from taking your baby to the
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