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Proteins are large molecules that play an important
role in the body
Proteins are made of many smaller units called
amino acids.
Proteins make up 18% of our body mass
We need proteins for growth and repair of tissues

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Foods such as eat, fish cheese and eggs are all rich
in proteins
Proteins are also polymers; proteins are made from
20 different sub units called amino acids
All amino acids contain 4 elements ­ carbon,
hydrogen, oxygen and nitrogen
The shape of the protein is very important in

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