Food begins to break down as soon as it enters your mouth.
They use something called "photosynthesis" in the leaves. It stores the sunlight for food. If you don't know how plants break down food, then you're probably in a grade lower than fourth, because...
with enzymes :)
The Intestines Breack Down Your Food
Your stomach stores the food, and there are acids in your stomach that break it Donw to digest it.