An antiporter and a symporter are examples of:
A) passive diffusion.
B) primary active transporters.
C) entropy-driven pores.
D) an ABC transporter.
E) a secondary transporter.

Question

Quizplus · Accepted Answer

Both antiporters and symporters are examples of secondary transporters, which use the energy stored in an electrochemical gradient to drive the transport of molecules across a membrane. In contrast, primary active transporters use ATP hydrolysis to drive transport, while passive diffusion and entropy-driven pores do not require energy input. ABC transporters are a family of primary active transporters that use ATP hydrolysis to transport a wide variety of molecules across membranes.

An Antiporter and a Symporter Are Examples Of