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Enzymes in Digestion

When you eat food it is mostly made up of large insoluble molecules that your body cannot absorb
straight into the blood stream so they need to be broken down or digested into smaller, soluble
molecules that can be absorbed into cells.

Digestive enzymes (unlike normal enzymes)…

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Digesting proteins

Proteins are found in fish, meat and cheese and are broken down into amino acids. It is catalysed by
protease enzymes. They are produced from the stomach, pancreas and small intestine. The
breakdown takes place in the stomach and small intestine.




Digesting fats

Lipids (aka fats and oils)…

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Once food is broken down into soluble molecules they leave the small intestine and pass into the
blood supply to be carried to cells.

Using the digested food

Glucose is used by the cells in respiration.
Fatty acids and glycerol may be used as a source of energy to build…

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