Cell Transport Permeability and Mechanisms

Categories: DiffusionTransport

Activity 2:

Simulated Facilitated Diffusion Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. Molecules need a carrier protein to help them move across a membrane because You correctly answered: they are lipid insoluble or they are too large. Which of the following is true of facilitated diffusion? You correctly answered: Movement is passive and down a concentration gradient.

Examples of solutes that might require facilitated diffusion include You correctly answered: all of the above.Which of the following would not affect the rate of facilitated diffusion? You correctly answered: a.

the amount of intracellular ATP 08/30/12 page 1 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? Your answer : The glucose transport rate will decrease.

For facilitated diffusion, increasing the concentration of glucose on one side of the membrane is the same as You correctly answered: making the concentration gradient steeper. When all of the membrane carriers are engaged, or busy, we say they are You correctly answered: saturated.

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 Na+ Cl- had no effect on glucose transport because You correctly answered: odium is not required for glucose transport in the simulation. 08/30/12 page 3 Review Sheet Results Explain one way in which facilitated diffusion is the same as simple diffusion and one way in which it is different from simple diffusion. Your answer: Simple diffussion moves molecules from an area of higher concentration to lower without an input of energy. facilitated follows the same rule but uses protein carrier molecules to allow substance that are fat solubles to diffuse through the cell membrane.

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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? Your answer: My prediction was wrong the glucose transport rate would increase 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? Your answer: The rate should stay ther same 08/30/12 page 4

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Cell Transport Permeability and Mechanisms. (2018, Sep 11). Retrieved from https://studymoose.com/cell-transport-permeability-and-mechanisms-essay

Cell Transport Permeability and Mechanisms

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