Pore size and filtration rate relationship

Classification of membranes according to pore size - OnlineMBR

pore size and filtration rate relationship

The exact relationship between rotation rate and flow rate depends upon the discussed under cake filtration. the relationship between the pore size of the. concentration increases, and diffusion rate increases as solute molecular weight decreases Pore size increased filtration rate because, as pore size increases. Is the rate of diffusion inversely or directly related to size of the molecule ( molecular weight? . Increasing the rate of filtration increased the concentration of solutes in the filtrate. The MWCO membrane was the largest pore size used.

Solutes are sometimes measured in milliosmoles.

pore size and filtration rate relationship

Water moves though most membranes easily and moves when there is a change in water concentration between two sides of membrane; meaning that water is chasing the concentration gradient.

The conditions were 9 mM albumin in the left beaker and 10 mM glucose in the right beaker with the MWCO membrane in place. The osmotic pressure for both was L.

Through Pore Size Characterization of Filtration Materials - Filtration News

Even with a high osmotic pressure albumin was still unable to pass though the MWCO membrane. We predicted that with a higher osmotic pressure both would diffuse though the membrane, but glucose was the one molecule that was able to diffuse through the membrane. Explain in your own words why increasing the pore size increased the filtration rate.

Use an analogy to support your statement. By increasing the pore size in the membrane the filtration rate increased because more molecules were able to diffuse though the larger pres faster than smaller pores. Our prediction was that the rate of filtration would increase because the pores were larger, allowing more molecules to pass the pores.

In the kidneys, the membrane pores are larger which allows glucose and urea to pass though the pores.

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Which solute did not appear in the filtrate using any of the membranes? Why did increasing the pressure increase the filtration rate but not the concentration of solutes? The increase of pressure made the filtration happen more quickly but did not change the concentration of the solutes because the pressure affects the rate at which it diffuses through the filter, not the amount that passes though the membrane.

We predicted that the rate would increase. Simulating Active Transport 1. Describe the significance of using 9 mM sodium chloride inside the cell and 6 mM potassium chloride outside the cell, instead of other concentration ratios.

Also, we were able to see the rate of diffusion 2. Explain why there was no sodium transport even though ATP was present. Explain why the addition of glucose carriers had no effect on sodium or potassium transport.

Do you think glucose is being actively transported or transported by facilitated diffusion in this experiment? Glucose is being actively transported in this experiment because the ATP that was there was used to transport it.

How to cite this page Choose cite format: Using your results from Chart 2, what was the fastest rate of facilitated diffusion recorded?

Explain the relationship between pore size and filtration rate?

Describe the conditions that were used to achieve this rate. Name two ways to increase the rate of glucose transport.


Increase amount of glucose solute and increase number of glucose carrier membrane. Did NaCl affect glucose transport?

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No Did NaCl require a transport protein for diffusion? No because if its small size it can diffuse without a transport protein. The following refer to Activity 3: Correlate your results to the data in Chart 3. Osmotic pressure building up because of non-diffusable NACI in the solute causes water to diffuse its concentration gradient.

For glucose, which MWCO membrane s provided for the net movement of glucose without net movement of water? No buildup of osmotic pressure shows glucose is able to diffuse down its concentration gradient. Is osmotic pressure generated if solutes diffuse freely?

No Explain how the solute concentration affects osmotic pressure.

Classification of membranes according to pore size

The higher the solute concentration, the higher the osmotic pressure. The following refer to Activity 4: The larger the pore size — the greater the filteration rate. Which solute did not appear in the filtrate using any of the membranes? Powdered charcoal What is your prediction of the molecular weight of glucose compared to the other solutes in the solution?

What happened when you increased the driving pressure?

pore size and filtration rate relationship

The filteration rate is increased.