Glucose enters a cell via a glucose transporter. What prevents glucose molecules from moving back through the transporter and leaving the cell?
A)phosphorylation
B)charge differences
C)closed transporters
D)gated transporters
E)concentration gradient

Question

Quizplus · Accepted Answer

Glucose is phosphorylated by hexokinase once it enters the cell, which prevents it from exiting the cell through the glucose transporter because the transporter does not recognize the phosphorylated form of glucose. This phosphorylation effectively traps glucose within the cell, allowing its utilization in metabolic pathways.

Glucose Enters a Cell Via a Glucose Transporter