How is transport across the cell membrane controlled?Carrier-mediated transportProtein characteristicsPassive: facilitated diffusionGLUT for glucose: How is this affected in our patient John with diabetes mellitus type II?ActiveCa+ and Na+/K+ pumps

An important role of the plasma membrane is to trasnport things in and out of the cell. It basically…

Answered: How is transport across the cell…

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Biology

How is transport across the cell membrane controlled?

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

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 4UC

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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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How is transport across the cell membrane controlled?

Carrier-mediated transport

Protein characteristics
Passive: facilitated diffusion
- GLUT for glucose: How is this affected in our patient John with diabetes mellitus type II?
Active
- Ca⁺ and Na⁺/K⁺ pumps

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