Predict question 2 what effect do you think adding na

Predict Question 2: What effect do you think adding Na+ Cl- will have on the glucose transport rate?
Stop & Think Questions:
What happened to the glucose transport rate when the glucose concentration was increased from 2 m M to
8 m M ?
Describe the conditions that resulted in the fastest rate of glucose transport.
Why do you think equilibrium wasn't reached?
Experiment Data:
Run Number Solute Start Conc. L Start Conc. R Carriers Rate
1 Na+ Cl- 0.00 0.00 500 0.0000
1 Glucose 2.00 0.00 500 0.0008
2 Na+ Cl- 0.00 0.00 500 0.0000
2 Glucose 8.00 0.00 500 0.0023
3 Na+ Cl- 0.00 0.00 700 0.0000
3 Glucose 2.00 0.00 700 0.0010
4 Na+ Cl- 0.00 0.00 700 0.0000
4 Glucose 8.00 0.00 700 0.0031
5 Na+ Cl- 0.00 0.00 100 0.0000
5 Glucose 10.00 0.00 100 0.0028#
6 Na+ Cl- 0.00 0.00 100 0.0000
6 Glucose 10.00 0.00 100 0.0028#
7 Na+ Cl- 0.00 2.00 700 0.0042
7 Glucose 2.00 0.00 700 0.0010

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Post-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
1. What variable(s) increased the rate of facilitated diffusion of glucose?
2. For facilitated diffusion, increasing the concentration of glucose on one side of the membrane is the same as
3. When all of the membrane carriers are engaged, or busy, we say they are
4. Na+ Cl- had no effect on glucose transport because

01/11/17 page 4
Review Sheet Results
1. Explain one way in which facilitated diffusion is the same as simple diffusion and one way in which it is different from
simple diffusion.
2. The larger value obtained when more glucose carriers were present corresponds to an increase in the rate of glucose
transport. Explain why the rate increased. How well did the results compare with your prediction?
3. Explain your prediction for the effect Na+ Cl- might have on glucose transport. In other words, explain why you picked
the choice that you did. How well did the results compare with your prediction?

Name: Gillian Guitian
Exercise 1: Cell Transport Mechanisms and Permeability: Activity 3: Simulating Osmotic Pressure Lab Report
Pre-lab Quiz Results
You scored 75% by answering 3 out of 4 questions correctly.