Which Solutes Were Able To Pass Through The 200 Mwco Membrane
REVIEW SHEET
EXERCISE 1
Cell Transport Mechanisms and Permeability
NAME:
LAB TIME/DATE:
Simple Diffusion
1. The following refer to Activity 1: Simulating Dialysis (Simple Diffusion).
Which solute(s) were able to pass through the 20 MWCO membrane? None of the solutes were able to pass through the 20 MWCO membrane. A possible reason to why none of the of these solutes were able to pass through was because the solutes could have been too big to be transported.
According to your results, which solute had the highest molecular weight?
The solute that had the highest molecular weight was Albumin.
Which solute displayed the highest rate of diffusion through the 200 MWCO membrane?
The solute that displayed the highest rate of diffusion through the 200 MWCO …show more content…
There was no buildup of osmotic pressure which indicated that glucose is able to diffuse down its concentration gradient.
Is osmotic pressure generated if solutes diffuse freely?
No, osmotic pressure is not generated if solutes diffuse freely.
Explain how the solute concentration affects osmotic pressure.
The higher the solute concentration, the higher the osmotic pressure.
Filtration
4. The following refer to Activity 4: Simulating Filtration.
Using your results in Chart 4, which MWCO membrane had the greatest filtration rate?
200 MWCO
Explain the relationship between pore size and filtration rate.
The larger the pore size the greater the filtration rate. Which solute did not appear in the filtrate using any of the membranes?
The powdered charcoal.
What is your prediction of the molecular weight of glucose compared to the other solutes in the solution?
Since the filtration rate of glucose is less than that of NaCl and urea, its molecular weight would be greater.
What happened when you increased the driving pressure?
The rate of filtration will increase.
Explain why fluid flows from the capillaries of the kidneys into the kidney
EXERCISE 1
Cell Transport Mechanisms and Permeability
NAME:
LAB TIME/DATE:
Simple Diffusion
1. The following refer to Activity 1: Simulating Dialysis (Simple Diffusion).
Which solute(s) were able to pass through the 20 MWCO membrane? None of the solutes were able to pass through the 20 MWCO membrane. A possible reason to why none of the of these solutes were able to pass through was because the solutes could have been too big to be transported.
According to your results, which solute had the highest molecular weight?
The solute that had the highest molecular weight was Albumin.
Which solute displayed the highest rate of diffusion through the 200 MWCO membrane?
The solute that displayed the highest rate of diffusion through the 200 MWCO …show more content…
There was no buildup of osmotic pressure which indicated that glucose is able to diffuse down its concentration gradient.
Is osmotic pressure generated if solutes diffuse freely?
No, osmotic pressure is not generated if solutes diffuse freely.
Explain how the solute concentration affects osmotic pressure.
The higher the solute concentration, the higher the osmotic pressure.
Filtration
4. The following refer to Activity 4: Simulating Filtration.
Using your results in Chart 4, which MWCO membrane had the greatest filtration rate?
200 MWCO
Explain the relationship between pore size and filtration rate.
The larger the pore size the greater the filtration rate. Which solute did not appear in the filtrate using any of the membranes?
The powdered charcoal.
What is your prediction of the molecular weight of glucose compared to the other solutes in the solution?
Since the filtration rate of glucose is less than that of NaCl and urea, its molecular weight would be greater.
What happened when you increased the driving pressure?
The rate of filtration will increase.
Explain why fluid flows from the capillaries of the kidneys into the kidney