TED-Ed

View full lesson: http://ed.ted.com/lessons/activation-energy-kickstarting-chemical-reactions-vance-kite Chemical reactions are constantly happening in your body -- even at this very moment. But what catalyzes these important reactions? Vance Kite explains how enzymes assist the process, while providing a light-hearted way to remember how activation energy works. Lesson by Vance Kite, animation by Ledfish.