Question

Select the following that is applied for bicarbonate transporter. Select the following that is applied for sodium/potassium pump

passive

active

symporter

antiporter

uniporter

electrogenic

electroneutral

Answer 1

For bicarbonate transportor:- passive (doesn't need ATP for transport), electroneutral( there is no net flow of charge takes place) other example is NA+/K+/2Cl co-transporter. Na+/HCO3- exchange pump is electrogenic. Cl/HCO3- exchanger works passively.

For Na+/K+ pump:- active(ATP is required for transportation), electrogenic(an ion pump that generates a net flow of charge.

Sodium/potassium pump is primary active transportor.

Uniporter is passive ion transport, also called fascilated diffusion.

Symporter and Antiporter are secondary active transporter. One ion makes gradient by using ATP and other travel passively.