allows certain molecules or ions to get in or to get out of the cell. There are three types of movement of particals across the cell: diffusion(and also facilitated diffusion)‚ osmosis and active transport. Diffusion and osmosis are passive movements and they don’t require any energy. Active transport requires ATP energy. OSMOSIS is the passive movement of water molecules across a partially permeable (semipermeable) membrane‚ from a region of lower solute concentration to a region of higher solute concentration
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Describe the basic training process. Team building Decision making Communication skills Computer skills Discuss at least two techniques used for assessing training needs. Explain the pros and cons of at least five training techniques. On-the-job training Informal learning Apprenticeship training Vestibule training Audiovisual and traditional distance learning techniques Computer-based training DVD-based training Simulated learning Learning portals iPod-based training Explain what management
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Osmosis: How fast can you move? The Rate at which Osmosis Occurs when Exposed to Various Toxicities Within the human body many things are occurring at all times. Without these small‚ seemingly insignificant processes all human life would cease to exist. One of the aforementioned activities is Osmosis‚ or the movement of water across a selectively permeable membrane eventually establishing equilibrium on both sides of the concentration gradient (Freeman 90). During this specific experiment involving
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Osmosis Osmosis is a special example of diffusion. It is the diffusion of water through a partially permeable membrane from a more dilute solution to a more concentrated solution – down the water potential gradient) Note: diffusion and osmosis are both passive‚ i.e. energy from ATP is not used. A partially permeable membrane is a barrier that permits the passage of some substances but not others; it allows the passage of the solvent molecules but not some of the larger solute molecules. Cell
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Investigation: A factor that affects the movement of water in and out of cells. Osmosis: movement of water from a region of high water potential to a region of low water potential through a partially permeable membrane. High water potential = lots of free water molecules‚ low solute concentration Low water potential = very few free water molecules‚ high solute concentration Factors That Affect the Movement of Water in and out of Cells * Solute concentration * If one solution
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Name Class Date 8.1 Energy and Life Lesson Objectives Describe the role of ATP in cellular activities. Explain where plants get the energy they need to produce food. Lesson Summary Chemical Energy and ATP Energy is the ability to do work. Organisms need energy to stay alive. Adenosine triphosphate (ATP) is a chemical compound cells use to store and release energy. An ATP molecule consists of adenine‚ the sugar ribose‚ and three phosphate groups. Cells store energy by adding a
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Osmosis Aim: To determine the concentration of cell sap in a potato cell. Osmosis is the movement of water through a semi-permeable membrane. It starts from a weak solution and becomes a more stronger solution until the concentrations on both sides are equal. To investigate the range of solutions needed to find the point at which the surrounding solution is the same as the cell sap in the vacuole.
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my writing process consisted of. When I look at the actual “writing” that I have done over the course of the last several years‚ it mainly contains Facebook status updates‚ letters to teachers‚ emails‚ blog posts‚ and product reviews for several online marketing companies. I haven’t written essays‚ journal entries or any kind of “story” in a very long time. Considering my recent writings‚ and the atmosphere in which they were written‚ I finally decided that my current writing process most closely
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My writing process has always been a frustrating one. I like writing‚ but I don’t think I’m very good at it. When I was younger‚ I loved letting my creative side shine by writing silly stories and pretending I was Stephen King‚ using words that I didn’t even understand. My dad read me Shel Silverstein’s books of poems and and drawings. Those books inspired me so much to write and to draw and be creative on a blank sheet of paper. I also loved writing in elementary school when there were no requirements
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My writing process all depends on what I am writing. Some writings I can sit down and write the whole things and be done with it‚ while others can take me multiple days or even weeks. I normally sit down and work on it until I finish‚ get tired of it‚ or a hit a roadblock. I try to stop when I feel like I am writing the same thing over and over or if I feel like I just need a break. Most of the time‚ if I feel like I am writing and it is really bad‚ it is because it is and I need to take a break
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