aime_nathan_SCI132_Week2-Exercise1

Aime_nathan_SCI132_W - Exercise 1 Cell Transport Mechanisms and Permeability Worksheet Assignment Due Week 2 Student instructions Follow the

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Exercise 1: Cell Transport Mechanisms and Permeability Worksheet Assignment Due: Week 2 Student instructions : Follow the step-by-step instructions for this exercise found in your text and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Please make sure that your answers are typed in RED . Please type your Name and Student ID Number here: Nathan Aime 4134653 Simple Diffusion Activity 1: Simulating Simple diffusion 1. What is the molecular weight of Na+? 22.99 2. What is the molecular weight of Cl-? 35.45 3. Which MWCO dialysis membranes allowed both of these ions through? 50, 100, 200 4. Which materials diffused from the left beaker to the right beaker? NaCl, Urea, Glucose. 5. Which did not? Why? Albumin. The membrane acts as a filter which will not let higher molecular weight solutes pass through, but will allow lower weight solutes to diffuse. Activity 2: Simulating Dialysis 1. What happens to the urea concentration in the left beaker (the patient)? It decreases to 5 mM with equilibrium at 17 minutes. Urea decreased 50%. 2.
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This note was uploaded on 01/08/2012 for the course BUSN 310 taught by Professor Alex during the Spring '11 term at American Public University.

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Aime_nathan_SCI132_W - Exercise 1 Cell Transport Mechanisms and Permeability Worksheet Assignment Due Week 2 Student instructions Follow the

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