Chemical vs. Mechanical Digestion

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Mechanical Digestion

-takes place mainly in mouth, partially in stomach

Chemical Digestion

causes chemical change to food, such as making complex sugars and starches into glucose and turning particles called peptides into amino acids

Mechanical Digestion

causes physical change to food, making food into smaller pieces

Mechanical Digestion

chewing

Chemical Digestion

enzymes such as pepsin, trypsin and rennin and acid( hydrochloric )

Chemical Digestion

hydrolysis - water molecule added where bond is broken

Mechanical Digestion

mastication - chews food into smaller pieces

Mechanical Digestion

stomach - muscles churning

Chemical Digestion

takes place in small intestine and a little in the mouth and stomach

Mechanical Digestion

the breaking down of food physically through chewing and churning, making digestion easier

Chemical Digestion

the breaking down of the food through chemical compounds, making it possible for body to absorb nutrients

Chemical Digestion

uses chemical energy to digest

Mechanical Digestion

uses mechanical energy to digest

Chemical Digestion

acid and enzymes break down food further

Mechanical Digestion

-teeth, muscles in stomach and muscles in other parts of alimentary canal

Mechanical Digestion

Peristalsis - involuntary contraction- move food through esophagus and small intestines


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