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PEX-01-02 - Exercise 1 Cell Transport Mechanisms and...

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Exercise 1: Cell Transport Mechanisms and Permeability: Activity 2: Simulated Facilitated Diffusion Lab Report Pre-lab Quiz Results You scored 50% by answering 2 out of 4 questions correctly. 1. Molecules need a carrier protein to help them move across a membrane because You correctly answered: d. they are lipid insoluble or they are too large. 2. Which of the following is true of facilitated diffusion? Your answer : d. Movement is active and down a concentration gradient. Correct answer: c. Movement is passive and down a concentration gradient. 3. Examples of solutes that might require facilitated diffusion include You correctly answered: d. all of the above. 4. Which of the following would not affect the rate of facilitated diffusion? Your answer : b. the concentration of solutes Correct answer: a. the amount of intracellular ATP 09/19/11 page 1
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09/19/11 page 2 Experiment Results Predict Question: Predict Question 1: What effect do you think increasing the number of protein carriers will have on the glucose transport rate?
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