Physio 9.0

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Exercise 1: Cell Transport Mechanisms and Permeability: Activity 5: Simulating Active Transport Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz.

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Experiment Results Predict Question: Predict Question 1: What do you think will result from these experimental conditions? Your answer : a. Na+ will be maximally transported. Predict Question 2: Do you think the addition of glucose carriers will affect the transport of sodium or potassium? Your answer : a. Yes, it will affect the transport of both ions. Stop & Think Questions: Why did the sodium transport stop before the transport was completed? You correctly answered: c. The ATP was depleted. Why was the equilibrium for the solutes reached earlier? Your answer : a. There was more ATP available. Correct answer: c. There were more pumps for transport. Experiment Data: Run Number 1 1 2 2 3 4 4 5 5 5 Solute Na+ ClK+ ClNa+ ClK+ ClNa+ ClNa+ ClK+ ClNa+ ClK+ ClGlucose ATP 1.00 1.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 --Start Conc. L 9.00 0.00 9.00 0.00 9.00 9.00 0.00 9.00 0.00 0.00 Start Conc. R 0.00 6.00 0.00 6.00 0.00 0.00 6.00 6.00 6.00 10.00 Pumps 500 500 500 500 500 800 800 800 800 --Carriers ------------------400 Rate 0.0188 0.0125 0.0050 0.0033 0.0000 0.0083 0.0056 0.0083 0.0056 0.0046#

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Post-lab Quiz Results You scored 0% by answering 0 out of 4 questions correctly. 1. What happened when you increased the amount of ATP dispensed with the same concentration of sodium and potassium on either side of the membrane? Your answer: c. The ions were transported more slowly. Correct answer: b. More ions were transported. 2. At what concentration of ATP were the sodium and potassium maximally transported? Your answer: b. 1 mM ATP Correct answer: d. 3 mM ATP 3. What was the effect of adding more Na+ -K+ pumps to the simulated cell? Your answer: b. More ions were transported in 60 minutes. Correct answer: a. Transport of the ions was faster. 4. Describe the...
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