mechanical breakdown
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the physical change in the change in food when the enters esophagus is when it has a chemical breakdown in your mouth with a mechanical breakdown the chemical breakdown is when your salivia is making the food moist the mechanical is when you chew the food so it easier for it to enter the esophagus and so the salivia can get it moist then your esophagus uses muscles to push the food down into your stomache
metabolism
In the mouth of course, because you have to chew it ( mechincally) to have it go down easier
No. Most of the breakdown of food is done by the small intestine.
me
Teeth crushing food is a physical process because it involves the mechanical breaking down of food into smaller pieces. Chemical processing, on the other hand, involves the breakdown of food molecules through reactions with enzymes and other substances in the body.
Physically is is chewed (so this is a purely physical breakdown). CHemically it reacts with the amylase in saliva and is broken down further.
Chewing begins mechanical breakdown of food through mastication
A physical change that occurs during digestion is the mechanical breakdown of food into smaller pieces through chewing and churning in the stomach. A chemical change that takes place is the breakdown of macromolecules like proteins, carbohydrates, and fats into simpler molecules like amino acids, glucose, and fatty acids through the action of enzymes.
Physical digestion is the term for breaking down large food molecules into small molecules. Mechanical digestion and physical digestion mean the same thing.
digestion