Photosynthesis By vmarquez May 20, 2012 Step 1 Choloroplasts traps light energy May 21, 2012 Step 2 Water enters leaf May 22, 2012 Step 3 Carbon dioxide enters leaf through stomata May 23, 2012 Step 4 Sugar leaves leaf May 24, 2012 Important Notes WATER + LIGHT = CHEMICAL ENERGY. May 25, 2012 Important Notes CHEMICAL ENERGY + CARBON DIOXIDE= SUGAR