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Physio Ex Exercise 1 Activity 3
Anatomy And Physiology (BIOL 2201)
Community College of Rhode Island
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PhysioEx Lab Report
Exercise 1: Cell Transport Mechanisms and Permeability Activity 3: Simulating Osmotic Pressure Name: Kaley Faucher Date: 15 September 2020 Session ID: session-35980e73-df2c-8a50-9da0-f2c9a80d85c
Pre-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
Experiment Results
Predict Questions
Stop & Think Questions
Which of the following is true of osmosis? You correctly answered: It is a type of diffusion.
1
Which of the following occurs when a hypertonic solution is added to cells? You correctly answered: The cells shrink.
2
The variable that affects osmotic pressure is You correctly answered: the concentration of nondiffusing solutes.
3
The net movement of water would be into the cell in a You correctly answered: hypotonic solution.
4
Predict Question 1: What effect do you think increasing the Na Cl concentration will have? Your answer: increased osmotic pressure.
1 + -
Predict Question 2: What do you think will be the pressure result of the current experimental conditions? Your answer: pressure above the left beaker.
2
Why do you think there is no pressure change? You correctly answered: Sodium is able to diffuse through the pores.
1
2 Why do you think there was no pressure change?
Experiment Data
Run Number
Solute MWCO Start Conc. L (mM)
Pressure L (mm Hg)
Start Conc. R (mM)
Pressure R (mm Hg)
Rate (mM/sec)
1 Na Cl 20 5 170 0 0 0. 1 Albumin 20 0 170 0 0 0. 1 Glucose 20 0 170 0 0 0. 2 Na Cl 20 10 340 0 0 0. 2 Albumin 20 0 340 0 0 0. 2 Glucose 20 0 340 0 0 0. 3 Na Cl 50 10 0 0 0 0. 3 Albumin 50 0 0 0 0 0. 3 Glucose 50 0 0 0 0 0. 4 Na Cl 100 8 0 0 0 0. 4 Albumin 100 0 0 0 0 0. 4 Glucose 100 0 0 0 0 0. 5 Na Cl 100 0 0 0 0 0. 5 Albumin 100 0 0 0 0 0. 5 Glucose 100 8 0 8 0 0. 6 Na Cl 200 0 0 0 0 0. 6 Albumin 200 0 0 0 0 0. 6 Glucose 200 8 0 0 0 0. 7 Na Cl 200 0 153 0 0 0. 7 Albumin 200 9 153 0 0 0. 7 Glucose 200 0 153 8 0 0.
Post-lab Quiz Results
You scored 50% by answering 2 out of 4 questions correctly.
You correctly answered: There is no net movement of water because the solute concentrations are the same.
If you double the concentration of a nondiffusible solute that is on one side of a membrane, the osmotic pressure will Your answer: be unchanged. Correct answer: double.
1
The albumin did not diffuse, because it is too large to fit through the filter, resulting in the left side having more pressure because minimal water molecules could diffuse.
Physio Ex Exercise 1 Activity 3
Course: Anatomy And Physiology (BIOL 2201)
University: Community College of Rhode Island
