exercise 1 cell transport mechanisms and permeability activity 1 simulating dialysis simple diffusion
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Universiteit Antwerpen (UA)
Farmaceutische Wetenschappen
Inleiding Fysiologie En Functionele Anatomie I (1008FBDFAR)
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26-5-2021 PhysioEx Exercise 1 Activity 1
PhysioEx Lab Report
Exercise 1: Cell Transport Mechanisms and Permeability
Activity 1: Simulating Dialysis (Simple Diffusion)
Name:
Date: 26 May 2021
Session ID:
Pre-lab Quiz Results
You scored 100% by answering 3 out of 3 questions correctly.
1 The driving force for diffusion is
You correctly answered: the kinetic energy of the molecules in motion.
2 In diffusion, molecules move
You correctly answered: from high concentration to low concentration.
3 Which of the following dialysis membranes has the largest pore size?
You correctly answered: 200 MWCO.
Experiment Results
Predict Questions
1 Predict Question 1: The molecular weight of urea is 60.07. Do you think urea will diffuse through the
20 MWCO membrane?
Your answer: No, not at all.
2 Predict Question 2: Recall that glucose is a monosaccharide, albumin is a protein with 607 amino
acids, and the average molecular weight of a single amino acid is 135 g/mol.
Which of the following will be able to diffuse through the 200 MWCO membrane?
Your answer: neither glucose nor albumin.
Stop & Think Questions
1 The reason sodium chloride didn't diffuse left to right is that
You correctly answered: the membrane pore size was too small.
2 Glucose is a six-carbon sugar. Albumin is a protein with 607 amino acids. The average molecular
weight of a single amino acid is 135 g/mol. There is no reason to run these solutes at the 20 MWCO
because
You correctly answered: glucose and albumin are both too large to pass.
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