Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla Hemes an fi sani da su a matsayin sassan hemoglobin, launin ja a cikin jini.
Tabbas, wani nau'i mai rikitarwa na jumla shine "Hemes an fi sani da su a matsayin abubuwan da ke cikin haemoglobin, launin ja a cikin jini, amma kuma ana samun su a cikin wasu mahimman haemoproteins masu mahimmanci irin su myoglobin, cytochrome, catalase, da kuma endothelial nitric oxide synthase. "