True regarding Na+ ion
Responsible for Donnan effect
Responsible for resting membrane potential
Responsible for depolarization
Dose not help other ions in transport
Ans. (c) Responsible for depolarization(Ref: Guyton, 13th ed/p.65)Option a - Sodium ion is not Responsible for Donnan effect. This effect is due to non-diffusible anions like proteinsOption b - potassium ion is responsible for RMPOption d - many substances require sodium for their transport through secondary active transport processes
General