SCORE: 28/100 DAY 1 08:08 PROGRESS: 36% HOME THEORY Interact with the LabPad to answer the quiz. MEDIA MISSION R These channel and carrier proteins mainly transport molecules passively. Active transport, on the other hand, needs energy. Why does active transport require energy? a) The transporters need to open wider because it transports bigger molecules b) It is faster than passive transport c) It transports molecules against an electrochemical gradient d) It transports molecules that are repelled by the membrane IC R TE VIEW THFORY