Lab # 2 Diffusion & Osmosis Introduction Kinetic energy‚ a root of energy stored in cells‚ causes molecules to hit into each other and move in new directions. Diffusion is the result of this contact. Diffusion is the random movement of molecules to an area of lower concentration from an area of higher concentration. Osmosis is a type of diffusion. This is the diffusion of water through a selectively permeable membrane from a region of higher water potential to a region of lower water
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GAZPROM What are the key resources that have enabled Gazprom to be successful? Are they sustainable? What are its key vulnerabilities? - One of the major strengths of Gazprom is ownership of large reserves of natural gas‚ though this is something that is not sustainable. Its monopoly ownership of major network of pipelines (UGSS of Russia) was a major advantage‚ providing Gazprom virtual control over the domestic transmission system in Russia. This removed any danger of competition from domestic
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PREDICTING CRIME WITH THE UNIFORM CRIME REPORTING SYSTEM Predicting Crime With the Uniform Crime Reporting System Mitchell Adair Introduction to Criminal Justice: CJA 105-AUO A01 Argosy University 1 The Uniform Crime Reporting System is a statistical effort that is said to be cooperative of more than ten thousand state‚ city‚ and county law enforcement agencies on a basis that is considered
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Four Loko The alcoholic beverage formally known as Four Loko began in an Ohio college dorm room as an experiment in 2006. Recently the drink has been banned in most states in America due to deaths and injuries. These tragedies could have easily been prevented if people were smarter and more responsible about their drinking. Four Lokos have been known for their high amount of alcohol and even higher amount of energy drink. Even though Four Lokos may be the best and most fun drunk ever‚ it is
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The effect of size on the effectiveness of diffusion Aim: To use agar blocks infused with 0.1 Molar sodium hydroxide (NaOH) and phenolphthalein to investigate the relationship between shape and surface area: volume ratio on the effectiveness of diffusion. Hypothesis: That for a cube of agar‚ the time taken for complete colourisation due to diffusion of HCl is directly proportional to the cubes volume. Materials: |A block of agar (10cm x 5cm x 3cm) with 0.1M NaOH and |1x 250mL
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Introduction: Diffusion and osmosis are passive processes of transport. Passive transport involves no disbursement of energy by the cell. Diffusion movement is from high concentration to low concentration‚ which the driving force for this type of movement is kinetic energy particles themselves. Which crystal (Methylene blue‚ solid or Potassium Permanganate KMnO4-purple) will move further than the other due to the driving force (kinetic energy)? My prediction is that Potassium Permanganate KMnO4-
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Diffusion is the molecular net movement from a higher concentration to a lower concentration. For instance‚ when a person is smoking‚ the smoke diffuses into the air. The molecules in the smoke‚ released from the cigarette‚ travel through the air. Here is how it occurs. When molecules are close enough‚ they collide with each other‚ their kinetic energy changes. Due to the direct relationship between diffusion and molecular kinetic energy‚ the molecules move away from the point of the collision as
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After carefully reviewing the case study: Predicting Harry’s Work Effort; I feel that Harry’s motivation is “just acceptable” for his job performance. Overall I felt that the most important thing to Harry was his reputation among his friends and he had irrational concern that they would make fun of him. However‚ he did point out that job security was most important. On getting a raise he valued it at a .5 and scored a promotion at a .9. According to Harry he felt that he had a 50-50 chance of getting
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Houston Edwards PSY 102 8/30/13 Professor Jones Four Goals of Psychology When thinking of psychology the first thought that comes to mind is the stepping-stones. Those stones are the four goals. The four goals are defined as‚ “the scientific study to behavior and mental process (Feldman‚ 4).” These goals are used to break down what is being studied and also to predict events and behavior‚ either good or bad. Those goals or methods are as follows: describe‚ explain‚ predict‚ and control
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Where as the active transport requires energy from the molecule to be moved. oFacilitated diffusion can only move in one direction from high concentration to low concentration‚ which is with the gradient. Where the active transport can move from both low concentrations to high concentrations‚ therefore it can move against the gradient where as the facilitated diffusion can not. The process of active transportation is when a molecule work together with the active side of a protein
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