What is Active Transport?
Active transport is the movement of substances across the plasma membrane of cells against the concentration gradient (From lower concentration to higher concentration).
Since it is against the concentration gradient, energy is needed in the process.
Basic Requirements in Active Transport
- Presence of the carrier protein
- Presence of ATP (Adenosine Triphosphate)
Function of the ATP
ATP is the source of energy in active transport. It supplies energy to the carrier protein to carry out the process. It is converted into ADP (Adenosine Diphosphate) after the reaction.