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Which mechanism is responsible for the maintenance of electrochemical ionic gradients?
Active transportation of ions against the electrochemical gradient via Na+-K+ transmembrane pumps
Passive transportation of ions against the electrochemical gradient via Na+-K+ transmembrane pumps
Active transportation of ions along the electrochemical gradient through Na+-K+ ion transmembrane pumps
Passive transportation of ions against the electrochemical gradient via Na+-K+ ion transmembrane pumps
Answers (1)
The active transport of ions against their electrochemical gradients through Na+-K+ transmembrane pumps is responsible for maintaining the electrochemical ionic gradients. These pumps use energy to move three sodium ions out of the cell for every two potassium ions moved into the cell. This process helps establish and regulate the balance of sodium and potassium ions inside and outside the cell. By maintaining these ionic gradients, the pumps support important cellular functions such as nerve conduction and muscle contraction. They play a crucial role in ensuring cells function properly. Hence, the correct answer is option 1.
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