Question

in mouth complex food molecules break down into simple molecules by
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Answer 1

Answer:

digestive enzymes

Explanation:

hope it helps u

Answer 2

Concept Introduction:- The complex molecules are typically made up of chains and rings which are consist of oxygen, hydrogen, nitrogen and carbon atoms. These atoms may consist from 10 to millions linking together in a specific array. Activation of Carbon and hydrogen atoms are considered as the most promising way for production of complex molecules.

Explanation:- All complex molecules of carbohydrate, protein and fat are broken down by the chemical digestion into smaller molecules and absorbed by the cells. With the help of water and digestive enzymes these food molecules are broken down into simple molecules, this process is also known as hydrolysis.

Final Answer:- By chemical digestion, complex food molecules break down into simple molecules.