Kayayyaki

Ma'ajiyar halitta wani abu ne na halitta wanda ke da tasiri mai tasiri akan ions hydrogen.Ta wannan hanyar, ma'auni na nazarin halittu yana taimakawa kiyaye jiki a daidai pH ta yadda tsarin biochemical ya ci gaba da tafiya da kyau.

Yawancin buffers sun ƙunshi acid mai rauni da tushe mai rauni.Suna taimakawa kula da pH da aka ba su ko da bayan ƙari na acid ko tushe.Misali, jini ya ƙunshi tsarin buffer carbonic acid (H2CO3) -bicarbonate (HCO3-).A cikin wannan tsarin, raunin acid ya rabu zuwa ƙananan ƙananan, yana ba da ions bicarbonate.Waɗannan ions suna iya ɗaure ƙarin H+ions da ke yawo a cikin jini.Wannan yana gyara raunin acid kuma yana rage adadin H+ ions a cikin bayani.

Masu buffer nazarin halittu kuma na iya zama tsarin buffer wanda ke taimakawa kiyaye tsayayyen pH a kusa da pH na jiki.Lokacin gudanar da gwaje-gwaje tare da sassa daban-daban na sel ko furotin guda ɗaya, dole ne masana kimiyya suyi la'akari da buffer ɗin da suke amfani da su.Idan ba tare da buffer mai kyau ba, ayyukan sashin da suke son yin nazari na iya raguwa.

Buffers sune sinadarai waɗanda ke taimakawa ruwa ya hana canza halayen acidic lokacin da aka ƙara wasu sinadarai waɗanda yawanci zasu haifar da canji a waɗannan kaddarorin.Buffers suna da mahimmanci ga sel masu rai.Wannan saboda buffers suna kula da pH daidai na ruwa. Menene pH?Yana da ma'auni na yadda ruwan acid yake.Misali, ruwan 'ya'yan lemun tsami yana da ƙananan pH na 2 zuwa 3 kuma yana da acidic sosai - haka ruwan 'ya'yan itacen cikin ciki yana karya abinci.Tunda ruwan acidic na iya lalata sunadaran, kuma sel suna cike da sunadaran, sel suna buƙatar samun buffer a ciki da wajensu don kare injin gina jiki.pH a cikin tantanin halitta kusan 7 ne, wanda ake ɗaukar tsaka tsaki kamar ruwa mai tsafta.