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Mechanical Digestion
The process of food being broken down by the teeth.The large pieces of food that are eaten have to be broken into smaller pieces that can be broken up by various enzymes. This is mechanical digestion, which begins in the mouth with chewing
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Similarities
Both use enzymes to help break down food
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Chemical Digestion
The complex molecules of carbohydrates, proteins, and fats are transformed by chemical digestion into smaller molecules that can be absorbed and utilized by the cells. Chemical digestion, through a process called hydrolysis, uses water and digestive enzymes to break down the molecules. Enzymes speed the process.
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