Answered: 9. Draw the three different types of…

9. Draw the three different types of transporter proteins used in active transport. After doing this, label which type of transporter protein the Na2+/K+ pump is.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter5: Membranes And Transport

Section: Chapter Questions

Problem 4TYK: A characteristic of carrier molecules in a primary active transport pump is that: a. they cannot...

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

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9. Draw the three different types of transporter proteins used in active transport. After
doing this, label which type of transporter protein the Na2+/K+ pump is.

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15. Describe the differences between channel-mediated and carrier-mediated transport.
1. Summarize the process in which the sodium-potassium pump transports solutes across the plasma membrane. (Keywords: transport of 2 potassium ions to the cytosol, import of 3 sodium ions outside of the cell; establishment of electrochemical gradient; use of active transporter which utilizes energy to transport ions against the gradient)
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