Solved UPSC CDS/OTA Question
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Q · Nervous Systemmedium · 45s
What is the role of the sodium-potassium pump?
TopicNervous System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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The Na⁺/K⁺ ATPase actively transports three Na⁺ ions out and two K⁺ ions into the neuron per ATP molecule, maintaining ion gradients essential for resting potential and action potential generation.
Final Answer: Option B - Maintain resting potential by transporting 3 Na⁺ out and 2 K⁺ in per ATP hydrolyzed