This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
All are ATP dependent transpoers except 
Select and explain. 
A. Na+ K+ ATPase, B. H+ ATPase, C. Cystic Fibrosis Transmembrane Regulator (CFTR), D. Na+ Ca2+ exchanger
D: Na+ Ca2+ exchanger
Answer: D: Na+ Ca2+ exchanger 
Explanation: ATP-dependent transpoers, as their name implies, use the energy in ATP to drive the movement of molecules/ ions across the membrane. There are two groups of ATP-dependent transpoers: ATPase ion transpoers and ATP-binding cassette (ABC) transpoers.Na+ K+ ATPase , H+ ATPase , CFTR is an example for ATP-binding cassette (ABC) transpoer. Na+ Ca2+ exchanger is a secondary active transpoer.Reference: Berne and Levy Physiology; updated 6th edition, Page no: 9