Group Translocation and Glucose Phosphorylation in Cells

Flashcards covering the concept of group translocation, its occurrence in prokaryotes, and the role of glucose phosphorylation during transport.

Group translocation

A transport mechanism in prokaryotes where the transported molecule is chemically modified (often phosphorylated) during uptake, so the molecule entering the cell is already in an active form (e.g., glucose to glucose-6-phosphate).

Prokaryotes

Organisms in which group translocation frequently occurs; transport often involves chemical modification of the substance as it enters the cell.

Glucose-6-phosphate

The phosphorylated form of glucose produced during group translocation, enabling immediate metabolism after entry into the cell.

Phosphorylation during transport

The addition of a phosphate group to a molecule as it is transported into the cell, so metabolism can begin immediately after uptake.

Eukaryotes and group translocation

Group translocation generally does not occur in eukaryotic cells; it is more typical in prokaryotes and is occasionally observed in plants.