Biology
Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 5, Problem 5U

The movement of water across a membrane is dependent on

a. the solvent concentration.

b. the solute concentration.

c. the presence of carrier proteins.

d. membrane potential.

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Passive membrane transport processes include... a.movement of water from an area of high solute concentration to an area of low concentration b.consumption of ATP c.the use of transport proteins when moving substances from areas of low to high concentration d.movement of a substance down its concentration gradient
For the following modes of transport for membranes, tell whether the flow is with or against chemical potenial. Meaning +deltaG or -deltag A. Passive Diffusion B.Faciliated Diffusion C.Active Transport
The process of “active transport" through a membrane may be described by which of the following? A. the movement of ions and small molecules away from regions where they are in high concentration. B. the use of energy from ATP to move ions and small molecules into regions where they are in lower concentration. C. the plasma membrane engulfs the substance and moves it through the membrane. D. the use of energy from ATP to move ions and small molecules against their concentration gradient.
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