Na + uptake at basolateral surface of apical cells is by -: (A) Active transport, (B) Passivetransport, (C) Diffusion, (D) Osmosis
Answer is A. Ans. is 'a' i.e., Active transporto The Na+ - 1C pump operates at basolateral membrane which maintains intracellular concentration of Na+ very low.o Na+ - K+ pump is a pump for active transport.