Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Tun da yanayin yawancin halittu suna canjawa a kai a kai, dole ne a daidaita yadda abubuwa suke canjawa don a ci gaba da kasancewa da yanayi na dindindin a cikin ƙwayoyin halitta, yanayin da ake kira homeostasis. Tsarin metabolism kuma yana ba da damar halittu su amsa sigina kuma suyi hulɗa tare da muhallansu. Abubuwa biyu masu alaƙa suna da mahimmanci don fahimtar yadda ake sarrafa hanyoyin metabolic. Na farko, tsari na enzyme a cikin hanya shine yadda aikinsa ya karu kuma ya ragu don amsa sigina. Abu na biyu, sarrafawar da wannan enzyme ke yi shine tasirin da waɗannan canje -canje a cikin aikinsa ke da shi a kan yawan adadin hanyar (jujjuyawar ta hanyar hanyar). Misali, enzyme na iya nuna manyan canje-canje a cikin aiki (watau an tsara shi sosai) amma idan waɗannan canje-canjen ba su da tasiri sosai a kan kwararar hanyar rayuwa, to wannan enzyme ba ta da hannu cikin kula da hanyar.  Tambaya: Wace alama ce kwayar halitta take amsawa?
Tsarin metabolism