Protein na-eme ka amino acids dị n'usoro n'usoro n'usoro nke jikọtara ọnụ site na njikọ peptide. Ọtụtụ protein bụ enzymes nke na-eme ka mmeghachi omume nke chemical na metabolism. Protein ndị ọzọ nwere ọrụ nhazi ma ọ bụ arụ ọrụ, dị ka ndị na-eme ka cytoskeleton, usoro nke scaffolding nke na-echekwa ụdị sel. Protein dịkwa mkpa na mgbaàmà cell, nzaghachi ahụike, njikọta cell, njem na-arụsi ọrụ ike gafee membranes, na okirikiri cell. Amino acids na-enyekwa aka na metabolism cell site na ịnye isi iyi carbon maka ntinye n'ime citric acid (tricarboxylic acid cycle), karịsịa mgbe isi iyi nke ike, dị ka glucose, dị ụkọ, ma ọ bụ mgbe mkpụrụ ndụ na-enwe nrụgide metabolic. Ajụjụ: Kedu ihe kachasị mkpa maka mkpụrụ ndụ iji lanarị?
Protein