Ana iya raba sunadarai cikin manyan rukuni uku, waɗanda ke da alaƙa da nau'ikan tsari na uku: sunadarai na globular, sunadarai na fibrous, da sunadarai na membrane. Kusan dukkanin sunadarai na globular suna narkewa kuma da yawa suna enzymes. Sunadarai na fibrous galibi suna da tsari, kamar su collagen, babban ɓangaren kayan haɗin gwiwa, ko keratin, ɓangaren furotin na gashi da kusoshi. Sunadarai na membrane galibi suna aiki a matsayin masu karɓa ko samar da tashoshi don ƙwayoyin polar ko masu caji don wucewa ta cikin membrane na tantanin halitta. Wani yanayi na musamman na haɗin hydrogen na intramolecular a cikin sunadarai, wanda ba shi da kariya daga harin ruwa kuma saboda haka yana inganta rashin ruwa na kansu, ana kiransa dehydrons. Tambaya: Wane nau'in furotin ne yawanci koyaushe mai narkewa?
ƙwallon ƙwallon