Is the H+/sucrose cotransport system involved in passive or active transport? How do you know?
Is the H+/sucrose cotransport system involved in passive or active transport? How do you know?
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Is the H+/sucrose cotransport system involved in passive or active transport? How do you know?
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Step 1
Secondary active transport is the transport in which the electrochemical gradient that is generated by active transport of H+ ions by the H+-ATPase is used as an energy source to move another molecule across the membrane against the concentration gradient. An example of such a transporter is Na+-glucose cotransporter.
In primary active transport, the energy is derived directly from the breakdown of ATP is used pump ions across the membrane against their electrochemical gradient. An example of such a transporter is Na+-K+ ATPase.
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