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==Key Stage 4==
===Meaning===
[[Protein]]s , also known as '''polypeptides''', are large [[polymer]] [[molecule]]s made from [[Amino Acid|amino acids]] that are used by our bodies for growth and repair.
===About Proteins===
: [[Protein]]s ('''polypeptides''') are formed in [[polymerisation]] [[Chemical Reaction|reaction]]s of [[Amino Acids]] ([[peptide]]s).
: [[Protein]]s are broken down by our [[Digestive System|digestive systems]] into [[Amino Acid|amino acids]] which are then transported around the body by our [[blood]].
: [[Cell (Biology)|Cells]] build new [[protein]]s from [[Amino Acid|amino acids]] in a process called [[Protein Synthesis|protein synthesis]] which takes place at the [[ribosome]]s in [[Cell (Biology)|cells]].