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Active transport requires the use of ATP. Identify two ions that require active transport to be selectively reabsorbed.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter14: The Urinary System

Section: Chapter Questions

Problem 3RE

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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.

Question

Active transport requires the use of ATP. Identify two ions that require active transport to be selectively reabsorbed.

Expert Solution

Step 1 Introduction

Active transport indicates the carrier-mediated transport of solute particles through the plasma membrane against the concentration gradient and this process requires energy. This transfer of solutes from the lower concentration to (inside the cell) to the higher concentration (outside the cell) and energy is consumed from adenosine triphoshphate (ATP).

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