Digestion is the process of metabolism whereby a biological entity processes a substance, in order to chemically and mechanically
convert the substance for the body to use.
Why is digestion important?
When we eat such things as bread, meat, and vegetables, they are not in a form that the body can use as nourishment.
Our food and drink must be changed into smaller molecules of nutrients before they can be absorbed into the blood and carried
to cells throughout the body. Digestion is the process by which food and drink are broken down into their smallest parts so
that the body can use them to build and nourish cells and to provide energy.
