Question

what is the defination of dijetion
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Answer 1

the process of breakage of complex substances into simpler ones is known as digestion

Answer 2

DIGESTION :

Digestion can be defined as the process by which insoluble complex food substances consisting of large molecules are broken down into soluble and simpler form having smaller molecules , which can be absorbed by the cells . Digestion is brought about with the help of special molecules called enzymes . Enzymes break the food particles into simpler molecules through chemical reaction . In complex higher organisms like humans , there are special organs for the digestion of food . The food passes through the alimentary canal . Here, several digestive enzymes are secreted . These enzymes break the complex food materials into simpler ones .

PROCESS OF DIGESTION INCLUDES FOLOWING PARTS:

mouth → oesophagus → stomach → small intestine → large intestine