<span>Potential energy because it has the potential to move.</span>
Active transport requires energy when moving molecules against a concentration agent. It requires for specific membrane transport proteins. Only a certain type of protein can move a certain type of substance.
The three main types of Active Transport are:
1) Sodium-Potassium Pump
2) Endocytosis
<span>3) Exocytosis </span>
D)
Because a scientific theory is something that has been proven over the trials of many tests
Hope that helps :)