Simple Diffusion
1. The following refer to Activity 1: Simulating Dialysis ( Simple Diffusion ) . Which solute ( s ) were able to go through through the 20 MWCO membrane? None of them did

Harmonizing to your consequences. which solute had the highest molecular weight? Albumin
Which solute displayed the highest rate of diffusion through the 200 MWCO membrane? Na+CI
Using the information from Chart 1. explain the relationship between the rate of diffusion and the size of the solute. The higher rates of diffusion occurred with a smaller weight of solute.

Facilitated Diffusion
2. The following refer to Activity 2: Simulating Facilitated Diffusion. Did any of the substances travel against their concentration gradient? Explain why or why non. No. because the solutes can merely travel down the concentration gradient in a facilitated diffusion. non against the concentration gradient.

Using your consequences from Chart 2. what was the fastest rate of facilitated diffusion recorded? 0. 0039
Describe the conditions that were used to accomplish this rate. Glucose concentration was 8mm. glucose bearers were 900
Name two ways to increase the rate of glucose conveyance.
A higher figure of glucose bearers. or a higher sum of glucose in a solution.

Did NaCl impact glucose conveyance?
no
Did NaCl necessitate a conveyance protein for diffusion? Why or why non? NaCI is little plenty to spread down its concentration gradient. enabling it to non necessitate a conveyance protein.

Osmotic Pressure
3. The following refer to Activity 3: Simulating Osmotic Pressure. For NaCl. which MWCO membrane ( s ) provided for the net motion of H2O without motion of NaCl? 20 MWCO
Explain how you determined this. ( Hint: Correlate your consequences to the informations in Chart 3. ) The physique up of osmotic force per unit area happening from the non diffusible NaCI in the solution causes the H2O to spread down it’s concentration gradient.

For glucose. which MWCO membrane ( s ) provided for the net motion of glucose without net motion of H2O?

Explain how you determined this.

Is osmotic force per unit area generated if solutes diffuse freely?
Explain how the solute concentration affects osmotic force per unit area.

Filtration
4. The following refer to Activity 4: Simulating Filtration. Using your consequences in Chart 4. which MWCO membrane had the greatest filtration rate? Explain the relationship between pore size and filtration rate.

Which solute did non look in the filtrate utilizing any of the membranes? What is your anticipation of the molecular weight of glucose compared to the other solutes in the solution? What happened when you increased the drive force per unit area?

Explain why fluid flows from the capillaries of the kidneys into the kidney tubules.

How do you believe a lessening in blood force per unit area would impact filtration in the kidneys?

5. The following refer to Activity 5: Imitating Active Transport. With 1 millimeters ATP added to the cell inside ( left beaker ) and the extracellular infinite ( right beaker ) . was all of the Na+ moved into the extracellular infinite? Why or why non?

Describe the consequence of diminishing the figure of sodium-potassium pumps. Describe how you were able to demo that the motion of Na was due to active conveyance.