Laboratory for Simple Diffusion Essay Example
Laboratory for Simple Diffusion Essay Example

Laboratory for Simple Diffusion Essay Example

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  • Pages: 2 (431 words)
  • Published: July 2, 2018
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The text presents experiments and observations on simple diffusion, dialysis, and facilitated diffusion. It provides the molecular weights of Na+ and Cl- and their ability to pass through membranes with different MWCOs. Certain MWCOs allow for diffusion from the left beaker to the right beaker, while smaller materials do not diffuse. Urea concentration is equally distributed between two beakers due to urea diffusion. The equilibrium time for facilitated diffusion is affected by glucose concentration and the number of carriers in membranes. The transport mechanism for Na+/Cl- involves simple diffusion influenced by actively transported glucose rather than salt. Glucose receptors exclusively bind to glucose. Additionally, it raises a question about whether equal amounts of glucose in both beakers would result in observable diffusion, suggesting that the absence of observable diffusion does not indic

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ate a lack of occurrence. Osmosis activity is absent.

Regarding filtration analysis, all samples had an infiltrate concentration of 0, and residue analysis showed the presence of all elements in the membrane.

The rate of filtration is affected by the molecular weight cut-off (MWCO) of the membrane.

The applied pressure does not affect the rate of filtration.

All solutes did not pass through all membranes.Traces of powdered charcoal were detected in the residue analysis, but it did not appear in the concentration results. The solutes that did not pass through were charcoal due to its large pore size. To selectively increase the filtration rate of a specific organ or organ system, active transport is employed. In this experiment, Na+/Cl- did not move from the left vessel to the right vessel because sodium transport does not occur when one required ion for Na+/K+ pump is missing on both side

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of the membrane. As the experiment progresses, solute concentrations near the beakers will significantly slow down and eventually stop before completion due to a lack of ATP causing changes in NaCl/KCl transport amount with more solute being transported. An increase in carriers or pumps decreases rate of active transport. There is no difference in the transportation of one solute compared to another as demonstrated by allowing simple diffusion through the membrane, which can be observed by adding varying amounts of glucose to both beakers. If 9 mM NaCl is present on one side and 15 mM on the other side of the membrane, there will be no movement of NaCl since potassium is absent. Both sodium and potassium must be present on opposite sides of the membrane for proper functioning ofthe Na+/K+ pump. Additionally, it should be noted that adding different amounts oATP has an impact on these processes

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