Question

The lactose permease transporter of e. coli can accumulate lactose inside the cell by transporting lactose in against a concentration gradient, driven by a co-transport process in which the same protein brings protons into the cell from a higher concentration outside to a lower concentration inside

what is the term used to describe the process (a type of active transport) in which one solute is transported against its concentration gradient by co-transport with another solute moving in the favorable direction?

Answer 1

Secondary active transport is the process where one solute is transported against its concentration gradient, powered by the movement of another solite down its gradient, often involving symporters or antiporters.

Step-by-step explanation:

The term used to describe the active transport process in which one solute is transported against its concentration gradient by cotransport with another solute moving in the favorable direction is secondary active transport. This process often involves symporters or antiporters. In the case of lactose permease in E. coli, symport occurs, where lactose and protons (H+) are co-transported into the cell, utilizing the favorable proton gradient to drive the uphill transport of lactose.