Facilitated diffusion is a carrier-mediated system that does not require energy and does not concentrate solutes against a gradient. … Group translocation systems, such as the phosphotransferase (pts) system in Escherichia coli, use energy during transport and modify the solute during its passage across the membrane.

Is group translocation active or passive?

Group translocation is a distinct type of active transport, using energy from an energy-rich organic compound that is not ATP. Group translocation also differs from both simple transport and ABC transporters in that the substance being transported is chemically modified in the process.

What happens in group translocation?

Group translocation is a biological process where a molecule crossing the cell membrane not only gets transported but also gets transformed in itself. This is like a whole character “lift-up” for the molecule and its properties, nature, and functions get changed.