Answer:
1 Once proteins, fats and carbohydrates are digested, absorption takes place in the small intestine.
2 if we eat food we get energy, but if there weren't chemical reaction in your body nothing happens.
Step-by-step explanation:
1 Most of the digestion occurs in the first part of the small intestine while the absorption of broken down nutrients, water, vitamins, and minerals occurs in the rest of it.