2.The bacterial Na+/H+ antiporter is involved in the excretion of excess Na+ from the bacterial cell....
2.The bacterial Na+/H+ antiporter is involved in the excretion of excess Na+ from the bacterial cell. Is the EXTRACELLULAR pH higher or lower than the INTRACELLULA pH ?
WHY do you say this ?
Homework Answers
Esherichia coli is a bacteria and it has 2 Na+/H+ antiporter genes namely 'nhaA' nad 'nhaB'. Here, nhaA gene is required for adoptation to mantain high salinity and grown at basic pH in presence of Na+.
The gene nhaB enhance the telerance to low levels of Na+. So, the gene nhaA is a high pH dependant. If the bacterial extracellular have high pH results excretion of exces Na+ liberated.
Hence, the correct option is '' Extracellular pH higher''
Add Answer to:
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helix found inside the cell membrane as part of a transmembrane
protein. Where will the following peptide fragment (shown as it
would exist inside the body at pH 7.4) more likely be found.
choice 1
on the interior of the cell membrane
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on the intracellular side of the cell:
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Be sure to discuss why you choose the areas you...
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