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Protein synthesis

Proteins and their uses

Each protein has a unique sequence of amino acids. This means that the number and order of amino acids is different for each type of protein. The proteins fold into unique shapes.

Haemoglobin molecule

Molecular model of haemoglobin

Keratin molecule

Molecular graphic of the protein keratin

The different shapes and sequences give the proteins different functions, eg keratin is a fibrous protein found in hair and nails. Enzymes are also proteins.

Back to The building blocks of cells index

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