Chemical Digestion: Enzymes and Hormones Involved

CHEMICAL
DIGESTION
Introduction
Human body utilizes two different types of
digestion: one is chemical digestion and another is
mechanical digestion. Mechanical digestion
processes includes chewing, swallowing and the
muscular movements which help the food through
the digestive tract which is further supported by
chemical digestion by using some enzymes that
helps to breaks the food particles in more smaller
molecules enough so that they can be absorbed
easily (Panawala, 2017).

 Chemical digestion is basically the breakdown of the large molecules or food
into the smaller nutrients so that it can be used by the body cells easily. There are
various enzymes and hormones involved in the chemical digestion of food.

 (Source: Anatomy and physiology, 2018)
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 Chemical digestion is not started in the
stomach but in the mouth. The moment
when the people see, smell or even
think about the food, their mouth begins
to secrete extra saliva. Chemical
digestion is happens in the mouth,
stomach and small intestine.

Role of enzymes
 Digestion basically involves engulfing
the large food portions and breaking
them into the micronutrients that are
small enough to be absorbed by the
body cells. Although chewing and
peristaltic movement help the body to
break those molecules but it is not
possible for them to break particle small
enough. This why body needs chemical
agents to act on the food partials