Simulating Dialysis Essay Example for Free

Simulating Dialysis EssayWhy do you think the urea was not open to come home done the 20 MWCO tissue layer? How well did the results compare with your expectation? __ The molecules were to large to go through. My results matched._ 3.Describe the results of the attempts to diffuse glucose and egg white through the cc MWCO membrane. How well did the results compare with your prediction? __The egg white was not able to go through and the glucose did. I predicted that neither of them will diffuse, however the glucose was able to go through._ ___4.Put the following in order from smallest to largest molecular weight glucose, sodium chloride, albumin, and urea. _sodium chloride, urea, glucose and albumin__ ___ACTIVITY 2 Simulated Facilitated Diffusion1.Explain one government agency in which facilitated public exposure is the same as simple diffusion and one way in which it differs.__ Both are unresisting diffusion that are from high assimilation gradient to a low concentrati on gradient. Facilitated differs from simple because it requires a carrier protein to diffuse. _ ___2.The larger value obtained when more glucose carriers were present corresponds to an increase in the rate of glucose transport. Explain wherefore the rate increased. How well did the results compare with your prediction? The rate increased because at that place is more room and muster up area increases relative to glucose. ___3.Explain your prediction for the effect Na+Cl might have on glucose transport. In other words, explain why you picked the choice that you did. How well did the results compare with your prediction? _I picked the answer based on the activity. My results matched. ACTIVITY 3 Simulating Osmotic Pressure1.Explain the effect that increasing the Na+Cl concentration had on osmoticpressure and why it has this effect. How well did the results compare with your prediction? ___ __ Increasing the NaCl will increase the osmotic pressure because water needs to diffuse to t he higher concentration gradient until equilibrium is reached_. My results were the same. 2.Describe one way in which osmosis is similar to simple diffusion and one way in which it is different. ___ _ Both are resistless transports of high concentration gradient to low concentration gradient. Osmosis differs because it is the diffusion of water from a high to a low concentration gradient through a selective permeable membrane.__ 3.Solutes are sometimes measured in milliosmoles. Explain the statement, Water chases milliosmoles. ___ __ Osmosis is the diffusion of the solvent, e.g. water. The water in this simulation diffuses to the side of the membrane that has the highest concentration of the solutes. _ 4.The conditions were 9 mM albumin in the left beaker and 10 mM glucose in the right beaker with the 200 MWCO membrane in place. Explain the results. How well did the results compare with your prediction? the glucose diffuses from the right beaker to the left beaker until equilibriu m is reached. The albumin cannot diffuse through the membrane. My results were off.ACTIVITY 4 Simulating Filtration1.Explain in your own words why increasing the concentre size increased the filtration rate. Use an analogy to support your statement. How well did the results compare with your prediction? ___ _ This increase in pore size will increase the filtration rate because if it have more space, they will be able to pass through. If you connect a water hose to spray your grass, the water will come appear faster than a device that attaches to water your grass. My results matched.__ 2.Which solute did not appear in the filtrate using either of the membranes? Explain why. ___ _ Powdered Charcoal- It was too large to pass through.__3.Why did increasing the pressure increase the filtration rate barely not the concentration of solutes? How well did the results compare with your prediction? _ The pressure allows for more movement through the membrane but equilibrium was not reached .__My results were 50/50 ___ACTIVITY 5 Simulating Active Transport1.Describe the significance of using 9 mM sodium chloride inside the cell and 6 mM potassium chloride exterior the cell, instead of other concentration ratios. _ the Na/K pump allows for 32 ratio__ ___2.Explain why there was no sodium transport even though adenosine triphosphate was present. How well did the results compare with your prediction? __ In order for the Na+/K+ pump to function, both these ions and ATP must be in place. My results were off._ 3.Explain why the addition of glucose carriers had no effect on sodium or potassium transport. How well did the results compare with your prediction? __ Glucose concentration does not affect the Na/K concentration. My results are off. 4.Do you think glucose is being actively transported or transported by facilitated diffusion in this experiment? Explain your answer. __ It is being transported by facilitated diffusion. Since glucose is a lipid indissoluble and too lar ge to pass through the membrane it requires a carrier but not ATP (no energy needed.)_ ___