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WiLLBERT WiLLBERT
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6 years ago
Which of the following mechanisms of membrane transport is correctly defined?

A)   simple diffusion:  uses concentration gradient to move highly polar molecules and ions across membranes
B)   facilitated diffusion:  uses proteins such as ion channels to move substances against their concentration gradient across a membrane
C)   primary active transport:  uses ATP hydrolysis to move ions against their concentration gradient across a membrane
D)   secondary active transport:  uses ATP hydrolysis along with an ion gradient to move polar molecules or ions against their concentration gradient across a membrane
E)   all of the above
Textbook 
Biochemistry

Biochemistry


Edition: 4th
Authors:
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Captain_MorrigCaptain_Morrig
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6 years ago
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WiLLBERT Author
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5 years ago
Thanks!
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