Answered: 10. Which of the following molecules is…

10. Which of the following molecules is most likely to passively diffuse across the plasma membrane? A. Carbon dioxide B. Glucose C. Hemoglobin D. Cholesterol E. Glycoproteins

Cardiopulmonary Anatomy & Physiology

7th Edition

ISBN:9781337794909

Author:Des Jardins, Terry.

Publisher:Des Jardins, Terry.

Chapter11: Aging And The Cardiopulmonary System

Section: Chapter Questions

Problem 7RQ: 7. Over the course of life, the diffusion capacity decreases by about A. 5 percent B. 10...

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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

10. Which of the following molecules is most likely to passively diffuse across the plasma
membrane?
A. Carbon dioxide
B. Glucose
C. Hemoglobin de
D. Cholesterol
E. Glycoproteins

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