The mouth, by the teeth.
in the mouth when you chew
Mechanical digestion is mainly in the mouth.
what is responsible for chemical digestion in earthworms
welll it takes place in both mechanical and chemical
Mostly in the mouth (mastication) and the stomach.
The very minute food enters the mouth it goes through the digestion process. There are 2 digestive system function processes that take place in our body. These 2 processes are the mechanical digestion and the chemical digestion.
mouth
There is the small intestine, stomach, and the mouth, and that is all that i can think of. Hope this answer helps you people out there looking for three of the organs for mechanical digestion. But if not....... well that sucks for you.
Most of the physical digestion takes place in the stomach, but the completion and absorption is done in the small intestine.
Mechanical digestion, i.e. your body breaking up the food into smaller pieces, is largely meant to speed chemical digestion up. We know that the rate at which the chemical reaction takes place is dependent on four things: the physical state of the reactants involved in the reaction, the temperature at which the reaction takes place, the concentration of the reactants, and the presence of a catalyst. Each influences the rate of reaction in different ways. Mechanical digestion breaks the food into smaller pieces, i.e. changes the physical state. With the larger pieces broken into smaller ones, more surface area is exposed. With greater surface area exposure, chemical digestion can take place much more rapidly. However, if for some reason you could get just huge chunks of food down your throat without chewing it, your stomach still churns (mechanical digestion) and the contractions in your intestines also help to break up food. So technically yes, chemical digestion would take place, but at a much slower and inefficient manner.
small intestines
intestines and the stomach.