Note: 1,000 career games played are needed to make this list of the one-thousand greatest on base plus slugging leaders, raw averages are presented in parenthesis to further distinguish the top one-hundred, and a bold faced entry denotes that the player was active during the previous Major League season.
Primary active transport, directly uses metabolic energy (ATP) to transport molecules across a membrane.
active. 1  engaged in action; characterized by energetic work, participation, etc.; busy: an active life. 2  being in a state of existence, progress, or motion: active hostilities. 3  involving physical effort and action: active sports. 4  having the power of quick motion; nimble: active as a gazelle.