When we ingest large molecules such as lipids, carbohydrates, and proteins, they must undergo catabolic reactions whereby enzymes split these molecules. this series of reactions is called

Chemical Digestion

Explanation:

Under digestion, chewing is considered to be half the battle. After food is done travelling from our mouth to our digestive system, the digestive enzymes tend to brake it down and thus turn it into several smaller nutrients which are further absorbed by our body.  This breakdown of food through series of reaction is referred to as a chemical digestion.

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