Which of the following is/are TRUE about ion channels and membrane pumps? a) lons can only move through ion channels down a gradient, while pumps can move ions against their gradients. b) lon channels are single-pass transmembrane proteins, while pumps consist of transmembrane proteins that cross the membrane multiple times. O c) lon channels mediate only passive diffusion, while pumps must hydrolyze ATP to move ions. d) a and c e) a, b and c
Which of the following is/are TRUE about ion channels and membrane pumps? a) lons can only move through ion channels down a gradient, while pumps can move ions against their gradients. b) lon channels are single-pass transmembrane proteins, while pumps consist of transmembrane proteins that cross the membrane multiple times. O c) lon channels mediate only passive diffusion, while pumps must hydrolyze ATP to move ions. d) a and c e) a, b and c
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 5UC
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Q16
![Which of the following is/are TRUE about ion channels and membrane pumps?
a) lons can only move through ion channels down a gradient, while pumps can
move ions against their gradients.
O b) lon channels are single-pass transmembrane proteins, while pumps consist of
transmembrane proteins that cross the membrane multiple times.
c) lon channels mediate only passive diffusion, while pumps must hydrolyze ATP
to move ions.
d) a and c
O e) a, b and c](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc1db0a8d-7a0a-4a06-9757-d3194d74bf23%2F805cf5e5-4d02-49e8-95b5-82f5ed357f6d%2F0w8n4t9_processed.png&w=3840&q=75)
Transcribed Image Text:Which of the following is/are TRUE about ion channels and membrane pumps?
a) lons can only move through ion channels down a gradient, while pumps can
move ions against their gradients.
O b) lon channels are single-pass transmembrane proteins, while pumps consist of
transmembrane proteins that cross the membrane multiple times.
c) lon channels mediate only passive diffusion, while pumps must hydrolyze ATP
to move ions.
d) a and c
O e) a, b and c
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