cell biology 10. Ion transporters are \'\'linked\'\' together - not physically,
ID: 52368 • Letter: C
Question
cell biology 10. Ion transporters are ''linked'' together - not physically, but as a consequence of their actions. For example, cells can raise their intracellular pH, when it becomes too acidic, by exchanging external Na+ for internal H+, using a Na+_H+ antiporter. The change in internal Na+ is then compensated for by using the Na+_K+ pump. A. Can these two transporters, operating together, normalize both the H+ and the Na+ concentrations inside the cell? B. Does the linked action of these two pumps cause imbalances In either the K+ concentration of the membrane potential?Explanation / Answer
a. they are called coupled carrier ,helps in maintaince of ion balance mainly inside the nephron of the kidney.sodium ion movement across the membrane is coupled to ions namely potassium and chloride ions .sodium hydogen tansporter is a ubiquitous , yes they are helpful inmainatininfg the acid base balanc einside the cell , hydogen ions are excereted outside ,to maintain the acid base balance
b. yes it causes the imbalances inside the memberane. there will be more potassium intracellular space the high potassium concentrations , causes the active resorption of the sodium ions which further leading to excretion of potasium ions .this causes the imbalance
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