Can any size solute be filtered through a membrane without harm?
If the pressure gradient is great enough, any size solute can be filtered through a membrane without harming the membrane 9. Which of the following is not a passive transport process? 10. Which of the following expresses the concentration of a solution?
Which solute is the most difficult to pass through the membrane?
Powdered charcoal, it is the largest of the solutes making it difficult to pass through the membrane. Why did increasing the pressure increase the filtration rate but not the concentration of solutes?
Can solutes diffuse through the pores of the membrane?
The solutes can diffuse through the pores and the concentration of solutes is the same on both sides of the membrane. 7. With the experimental conditions set at 10 mM glucose and 9 mM albumin, and the 200 MWCO membrane in place, which of the following is true? 8. A cell is immersed in a beaker of solution.
Is the cell membrane permeable to water and solutes?
The cell membrane is permeable to water but impermeable to solutes. If the intracellular concentration is 10 mM and the solution is 20 mM, which of the following is true?
Which solute did not appear in the filtrate using the 200 Mwco of membrane?
Why did albumin not pass through any of the membranes?
When a solute is able to diffuse through a membrane?
Why does NaCl not affect glucose transport?
Can albumin pass through cell membrane?
How does Mwco affect filtrate concentration?
Does water diffuse towards or away from solutes?
Which of the following is not a type of passive transport?
What type of transport is osmosis?
Which of the following is true for osmosis?
Is urea bigger than NaCl?
Why did the sodium transport stop?
Which solute did not appear in the filtrate using any of the membranes?
Which solute did not appear in the filtrate using any of the membranes? Explain why.Activated charcoal did not appear using any of the membranes. This is because it was too big to fit through any of the membranes.
Why was there no sodium transport even though ATP was present?
How well did the results compare with your prediction?There was no sodium transport because in order for Na/K pump to function both ions need to be present even if ATP is present. since only Na was present it would use a passive diffusion down the concentration gradient.
Why doesn't charcoal appear in the filtrate?
The powdered charcoal didn't appear in the filtrate because it has a very porous internal matrix, giving lots of surface area for adsorption to surfaces ; it likely was stuck and reacted with the membrane rather than filtering through it.
Why is urea not able to diffuse through the 20 MWCO membrane?
Because the MW of the urea is 60.07, it exceeded the 20 MWCO, therefore it was unable to diffuse through the 20 MWCO membrane due to urea being unable to fit through the pores of the membrane.
Why doesn't albumin diffuse?
The albumin didn't pass through the membrane to diffuse due to it being too large to fit through the pores of the 200 MWCO membrane. The glucose was able to pass through a little bit because of it being a smaller molecule than albumin, therefore it had a higher diffusion rate.
What does it mean when water chases milliosomoles?
Water chases milliosomoles can be explained or translated to mean that water goes in its diffusion towards a higher concentration of solutes down a gradient.
What is the sodium potassium pump?
The sodium potassium pump is a cotransporting protein meaning it needs to have ATP and go up the gradient. In other words, potassium needs to be present in order for sodium to be transported. Explain why the addition of glucose carriers had no effect on sodium or potassium transport.
How is osmosis different from simple diffusion?
Osmosis is similar to simple diffusion in that it's a passive process and moves solutes. Osmosis is different from simple diffusion because it's the movement of water rather than solutes. Solutes are sometimes measured in milliosmoles. Explain the statement, "Water chases milliosmoles.".
What happens to the rate of diffusion as concentration increases?
Concentration-As concentration increases, the rate of diffusion increases due to having a higher concentration gradient.
What is the largest solute in the membrane?
Powdered charcoal, it is the largest of the solutes making it difficult to pass through the membrane.
Why does increasing the pressure increase the filtration rate?
Increasing the pressure increased the filtration rate because it allowed the solutes to move through the membrane faster. The concentration of the solutes did not change because the pressure in not related to the amount of solute present. The movement of sodium and potassium maintained by the Na+ -K+ pump.
Why does water decrease as milliosmoles increase?
As a solute increase, the number of milliosmoles increase, the water will decrease because water moves toward high concentration of solute.
What does a larger value obtained when more glucose carriers were present correspond to?
The larger value obtained when more glucose carriers were present corresponds to an increase in the rate of glucose transport. Explain why the rate increased. How well did the results compare with your prediction?
Why is there no net movement of water?
There is no net movement of water because the solute concentrations are the same.
Does sodium chloride increase osmotic pressure?
Increasing the sodium chloride increased the osmotic pressure because the more solute added, the more water that is needed to pass through the membrane.
Does sodium chloride have a diffusion effect?
Sodium chloride did not have an effect on the glucose transport since sodium chloride does not use facilitated diffusion, therefore it did not have an effect.
How are lipid-insoluble solutes transported across the membrane?
Lipid-insoluble solutes are transported across the membrane by a carrier protein.
Which solution moves toward the lowest concentration of solutes?
Water moves toward the solution with the lowest concentration of solutes.
What are some examples of filtration?
3. An example of filtration occurs in the kidney and: Ions and glucose filter from the capillary into the kidney tubule. 4.
Which direction does the movement of a solute occur?
The movement of a given solute usually occurs in both directions (into and out of the cell).
Can solutes diffuse through pores?
The solutes can diffuse through the pores and the concentration of solutes is the same on both sides of the membrane.