The process of conversion of complex food substance to simple absorbable forms is called
Excretion
Respiration
Digestion
CIrculation
As we have learned
Digestion -
The process of conversion of complex food substances to simple absorbable forms is called digestion
- wherein
Biomacromolecules in food cannot be utilised by our body in their original form. They have to be broken down and converted into simple substances in the digestive system. This process of conversion of complex food substances to simple absorbable forms is called digestion and is carried out by our digestive system by mechanical and biochemical methods.