In what type of transport system does the carrier NOT directly split ATP to move a substance against its concentration gradient?
A)passive secondary transport
B)active primary transport
C)primary active transport
D)secondary active transport
E)carrier mediated diffusion

Question

In what type of transport system does the carrier NOT directly split ATP to move a substance against its concentration gradient?
A)​passive secondary transport
B)active primary transport
C)primary active transport
D)secondary active transport
E)​carrier mediated diffusion

Quizplus · Accepted Answer

In secondary active transport, the carrier does not directly split ATP. Instead, it uses the energy from the electrochemical gradient created by primary active transport, which does use ATP.

In What Type of Transport System Does the Carrier NOT