What is the energy source for active transport in cells? Biology Movement In and Out of Cells Active Transport 1 Answer Kazi Ashiq Iqbal Oct 25, 2015 ATP Answer link Related questions How do sodium-potassium pumps support the efficient functioning of cells? Why is the sodium potassium pump an example of active transport? What is the difference between active and inactive transport in cells? What are some examples of each? What molecules require active transport across cell membranes? What is an example of active transport that occurs in a plant? Why does active transport need energy? Where does this energy come from? Why does active transport occur in cells? What do amoebas use for movement? Calculate the work required to transfer 1 mol of K+ from the blood to muscle cells? Question #d2597 See all questions in Active Transport Impact of this question 6258 views around the world You can reuse this answer Creative Commons License