Breakdown of food by enzymatic action is known as digestion as it the process of breakdown of food into simple substances.
In the process of breakdown of food first of all mechanical process takes place that is grinding of food with the help of teeth.
In mouth saliva is present that contains an enzyme known as salivary amylase and it helps to break down the long starch molecules into maltose.
In the process of digestion both physical and chemical processes takes place and complex food particles converted into simple food particles and absorbed in the blood.
Therefore, digestion is the process in which breakdown of food takes place.
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