Kodi buffer system ya mkodzo ndi chiyani?
Kodi buffer system ya mkodzo ndi chiyani?
Anonim

Kutulutsa kwa asidi (kapena kupanga bicarbonate) ndi impso ndikofunikira kuti acid-base homeostasis. Phosphate ndiye wofunikira kwambiri chotchinga mkodzo; zake mkodzo Kuchuluka kwa acidosis kumawonjezeka.

Motere, chotchinga mkodzo ndi chiyani?

PHOSPHATE BUFFER MU MKOZO Nthawi zambiri phosphate ndiyo yokhayo chotchinga mkodzo, ngakhale carbonic acid/bicarbonate iliponso. Otukuka mkodzo ili ndi NaH2PO4/Na2HPO4 mulingo womwewo womwe ulipo mu plasma yamagazi.

Kuphatikiza apo, ma buffer system amagwira ntchito bwanji? A posungira ndi chisakanizo cha asidi ofooka ndi maziko ake a conjugate kapena maziko ofooka ndi asidi ake a conjugate. Ma buffers amagwira ntchito pochita ndi asidi wowonjezera kapena maziko kuwongolera pH. Monga momwe chitsanzo chapamwambachi chikusonyezera, a buffer imagwira ntchito pochotsa asidi amphamvu kapena maziko ndi ofooka.

Ndiye, chotchinga chachikulu cha mkodzo ndi chiyani?

The bicarbonate posungira ndi dongosolo loyamba la buffering ya IF yozungulira ma cell mu minofu m'thupi lonse. The kupuma ndi aimpso machitidwe seweranso chachikulu maudindo mu acid-base homeostasis pochotsa CO2 ndi ayoni wa haidrojeni, motero, kuchokera m'thupi.

Kodi haidrojeni amachotsedwa bwanji m'thupi?

2. Kutuluka za haidrojeni Ions (H+) ndi Impso. Magazi akakhala acidic kwambiri, impso zake zimachotsa H+ ions ku thupi ndi tulutsa iwo mu mkodzo. haidrojeni ions amachotsedwa ndi ma proximal convoluted tubules (PCTs) ndi kusonkhanitsa tubules (CTs) omwe ali mbali ya nephrons ya impso.

Yotchuka ndi mutu