3 1. The pressure will increase due to the increased concentration of sodium chloride. The pressure increased. 2. Neither one requires ATP. Simple diffusion is the movement of a solute from an area of HIGH to LOW solute concentration but osmosis is the movement of water from an area of LOW to High solute concentration. 3. Because water moves toward the HIGH concentration of solutes. 4. We know the pressure will increase in the albumin beaker because it is more impermeable than glucose
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of this lab was to depicked the many properties of diffusion such as isotonic‚ hypotnonic‚ and hypertonic‚ so that students could have a clear visual example to go by for future refrences. We also did this to learn about selective permeability and osmosis. Our original hypothesis stated that the vinegar would react with the calcium in the shell to create CO2 bubbles. Note I said the original hypothesis as this experiment took coarse over a four day period‚ in which a new variable was added each day
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Choosing change intervention tools: Change is not primarily about riding the new waves; it certainly is about taking risks‚ Risk taking comes with being a leader but learn to lever change interventions into the border directions of the organization in order to increase the effectiveness of change. - Levels & depth of change intervention While change can be effected at various levels‚ not all type of intervention guarantee the longevity of change for the organization. However‚ its
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Initial mass (kg) Final mass (kg) Change in mass (%) 0.10 0.95 1.25 31.57 0.20 0.94 1.13 20.21 0.30 1.03 1.15 11.65 0.40 0.95 1.05 10.52 0.50 0.88 0.86 -2.27 0.60 0.93 0.84 -9.67 Control 0.99 1.40 42.41 Discussion. Osmosis is the passive diffusion of water molecules across a selectively permeable membrane from a down a concentration gradient. The water potential of a system is the tendency for water to exit the system. In this experiment the aim was to measure the
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POTENTIAL II OVERVIEW In this laboratory you will investigate the effect of solute concentration on water potential as it relates to living plant tissues. OBJECTIVES Before you begin this lab you should understand: - the mechanisms of diffusion and osmosis and their importance to cells - the concept of water potential - the relationship between solute concentration‚ pressure potential and the water potential of a solution - the concept of molarity and its relationship to osmotic concentration **also
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will be able to freely cross the membrane and do not affect tonicity because they will always be in equal concentrations on both sides of the membrane. Also‚ water will flow from a hypotonic solution to hypertonic. 4- Explain the direction of osmosis and effects of tonicity (hypotonic‚ hypertonic‚ or isotonic) in plant and animal cells. Use lab results in your explanation. If a cell is placed in an isotonic solution‚ the cell will maintain its normal volume because no osmotic pressure is occurred
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Activity 1: Stimulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. The two variables that affect the rate of diffusion are: • The composition of the lipid layer‚ this content varies from tissue to tissue. For example kidney tissues have a high cholesterol content which makes them impermeable to water. • The size of the molecule‚ the larger the molecule the slower the rate of diffusion. 2. Why do you think the urea was not able to diffuse
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a dynamic structure which gives them their remarkable activity and selectivity. (Hickman‚ 2008). Diffusion is the movement of particles from an area of higher concentration to a lower concentration until they reach Equilibrium. (Hickman‚ 2008).Osmosis happens when water diffuses across the membrane from the region of lower solute concentration (higher free water concentration) to that of higher solute concentration (lower free water concentration) until the solute concentrations on both sides of
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other recent ventures. Your recommendations should be specific and supported with facts from your industry analysis‚ company situation analysis‚ and financial analysis. Please attach the tables‚ figures‚ or other exhibits necessary to support your conclusions. (You should utilize the financial ratios presented in the Appendix of the text as a guide in doing your financial analysis of the company.) Your supporting exhibits and executive summary of recommendations will be given equal weighting in your
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Activity 3 Simulating Osmotic Pressure 1. Explain the effect that increasing the Na+Cl− concentration had on osmotic pressure and why it has this effect. How well did the results compare with your prediction? ___ ___ 2. Describe one way in which osmosis is similar to simple diffusion and one way in which it is different. ___ ___ 3. Solutes are sometimes measured in milliosmoles. Explain the statement‚ “Water chases milliosmoles.” ___ ___ 4. The conditions were 9 mM albumin in the left beaker
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