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Question 4 0/1 pts The bacterial Na+-H+ symporter is a secondary active transport protein that pumps Na+ from inside the cell to the extracellular space against its concentration gradient. Energy from this is derived from the coupled flow of H+ ions. Based on the flow of H+ ions (hint: should it be with or against its concentration gradient for this secondary active transport pump to work?), is the extracellular pH higher or lower than the intracellular pH in this symporter, and why? As a symporter, H+, must then move out of the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has higher H+ concentration, lower pH. As a symporter, H+, must then move into the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has lower H+ concentration, higher pH. As a symporter, H+, must then move out of the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has lower H+ concentration, higher pH. As a symporter, H+, must then move into the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has higher H+ concentration, lower pH.

Question 4 0/1 pts The bacterial Na+-H+ symporter is a secondary active transport protein that pumps Na+ from inside the cell to the extracellular space against its concentration gradient. Energy from this is derived from the coupled flow of H+ ions. Based on the flow of H+ ions (hint: should it be with or against its concentration gradient for this secondary active transport pump to work?), is the extracellular pH higher or lower than the intracellular pH in this symporter, and why? As a symporter, H+, must then move out of the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has higher H+ concentration, lower pH. As a symporter, H+, must then move into the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has lower H+ concentration, higher pH. As a symporter, H+, must then move out of the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has lower H+ concentration, higher pH. As a symporter, H+, must then move into the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has higher H+ concentration, lower pH.

Biochemistry
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
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Question 4 0/1 pts The bacterial Na+-H+ symporter is a secondary active transport protein that pumps Na+ from inside the cell to the extracellular space against its concentration gradient. Energy from this is derived from the coupled flow of H+ ions. Based on the flow of H+ ions (hint: should it be with or against its concentration gradient for this secondary active transport pump to work?), is the extracellular pH higher or lower than the intracellular pH in this symporter, and why? As a symporter, H+, must then move out of the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has higher H+ concentration, lower pH. As a symporter, H+, must then move into the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has lower H+ concentration, higher pH. As a symporter, H+, must then move out of the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has lower H+ concentration, higher pH. As a symporter, H+, must then move into the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has higher H+ concentration, lower pH.
Transcribed Image Text:Question 4 0/1 pts The bacterial Na+-H+ symporter is a secondary active transport protein that pumps Na+ from inside the cell to the extracellular space against its concentration gradient. Energy from this is derived from the coupled flow of H+ ions. Based on the flow of H+ ions (hint: should it be with or against its concentration gradient for this secondary active transport pump to work?), is the extracellular pH higher or lower than the intracellular pH in this symporter, and why? As a symporter, H+, must then move out of the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has higher H+ concentration, lower pH. As a symporter, H+, must then move into the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has lower H+ concentration, higher pH. As a symporter, H+, must then move out of the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has lower H+ concentration, higher pH. As a symporter, H+, must then move into the cell down its concentration gradient, which drives Na+ export. Thus extracellular space has higher H+ concentration, lower pH.
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