Active Transport Occurs In Cells, For Example, When The Na-K Pump Is At Work. Any Process That Involves Active Transport Most Often Involves The. It occurs when molecules such as glucose or amino acids move from high concentration to low concentration facilitated by carrier proteins or pores in the membrane. This pump is essential for maintaining the electrochemical gradients.

It occurs when molecules such as glucose or amino acids move from high concentration to low concentration facilitated by carrier proteins or pores in the membrane. This pump is essential for maintaining the electrochemical gradients.