Qhov Tseem Ceeb Qhov txawv - Hlau vs hemoglobin
Hlau thiab hemoglobin yog ob yam tseem ceeb hauv cov ntshav. Hemoglobin yog ib qho complex protein molecule nyob rau hauv cov ntshav liab uas nqa oxygen los ntawm lub ntsws mus rau lub cev cov ntaub so ntswg thiab xa carbon dioxide los ntawm lub cev nqaij daim tawv mus rau lub ntsws kom tshem tawm. Hlau yog ib qho tseem ceeb ntawm kev tsim cov ntshav thiab nws yog ib qho tseem ceeb ntawm hemoglobin. Qhov no yog qhov sib txawv ntawm cov hlau thiab hemoglobin.
Iron yog dab tsi?
Hlau yog cov tshuaj uas ua haujlwm ntau lub luag haujlwm hauv lub cev suav nrog, kev thauj mus los oxygen, tshem tawm cov pa roj carbon dioxide, DNA synthesis, tiam ntawm ATP ntawm electron thauj saw, thiab tsim cov enzymes tseem ceeb hauv lub cev. Nws yog ib qho tseem ceeb ntawm cov ntshav synthesis. Kev thauj cov pa oxygen thiab carbon dioxide los ntawm cov ntshav ncig yog yooj yim los ntawm cov hlau atoms hauv hemoglobin ntawm cov hlwb liab. Feem ntau ntawm cov hlau nyob rau hauv peb lub cev muaj nyob rau hauv hemoglobin thiab ib tug tsawg yog pom nyob rau hauv myoglobin thiab cytochromes.
Cov khoom noj khoom haus tau nqus raws li ferrous ions ntawm duodenum. Kev nqus hlau los ntawm kev noj zaub mov yog nyob ntawm ntau yam. Kev nqus tau tuaj yeem txhim kho los ntawm kev noj cov vitamin C uas muaj cov khoom noj ib txhij nrog cov zaub mov muaj hlau. Polyphenols, qee cov tsiaj proteins, calcium ions, phytates hu ua inhibitors ntawm hlau nqus.
Kev tswj kom muaj qib hlau hauv lub cev yog qhov tseem ceeb. Yog li ntawd, hlau uptake, thauj, cia, thiab siv yuav tsum tau zoo txhim khu kev qha thiab tswj vim hais tias cov deficiency thiab ntau ntau yuav ua rau ntau yam teeb meem nyob rau hauv lub cev. Hlau yuav tsum tau khaws cia thiab muab txaus rau cov hlwb kom lawv cov metabolism zoo. Cov hlau ntau dhau tuaj yeem ua rau hemochromatosis, fibrosis, cirrhosis thiab lwm yam. Hlau deficiency yuav ua rau depletion ntawm hlau khw hauv lub cev, ua rau ib tug mob hu ua hlau deficiency anemia thiab lwm yam cellular dysfunctions. Yog li, homeostasis ntawm hlau yog qhov tseem ceeb hauv lub cev.
Iron los ntawm lub cev tshwm sim vim ntau yam. Txo cov ntshav, tso zis, tso zis, tawm hws, exfoliation ntawm cov hlwb los ntawm qhov chaw epithelial, los ntshav ntau dhau thaum cev xeeb tub, los ntshav thaum cev xeeb tub thiab lwm yam ua rau lub cev tsis muaj hlau nyob hauv lub cev. Hlau deficiency tuaj yeem kov yeej siv tshuaj, khoom noj khoom haus nplua nuj hlau, tshuaj ntxiv hlau thiab lwm yam yam tsis tso cai rau qhov tsis muaj peev xwm hloov mus rau qhov tsis muaj hlau tsis txaus anemia. Nws yog ib qho mob tseem ceeb uas qhia cov tsos mob ntev raws li qhia hauv daim duab 01.
Daim duab 1: Cov tsos mob ntawm anemia
Hemoglobin yog dab tsi?
Hemoglobin yog cov hlau uas muaj cov qe ntshav liab cov protein ua lub luag haujlwm thauj cov pa oxygen los ntawm lub ntsws mus rau lub cev cov ntaub so ntswg thiab cov kabmob, thiab kev thauj mus los ntawm cov pa roj carbon dioxide ntawm lub cev mus rau lub ntsws. Nws tseem hu ua oxygen nqa cov protein hauv cov ntshav. Nws yog ib tug complex protein uas muaj plaub lub subunits protein me me thiab plaub pawg heme bearing hlau atoms raws li qhia nyob rau hauv daim duab 02. Hemoglobin muaj affinity siab rau oxygen. Muaj plaub qhov chaw sib txuas cov pa oxygen nyob rau hauv hemoglobin molecule. Thaum hemoglobin saturates nrog oxygen, cov ntshav ua xim liab thiab hu ua oxygenated hemoglobin. Qhov thib ob lub xeev ntawm hemoglobin uas tsis muaj oxygen tsis khi nrog oxygen yog hu ua deoxyhemoglobin. Hauv lub xeev no, ntshav dais xim liab tsaus.
Nws yog cov hlau atom embedded nyob rau hauv lub heme compound ntawm hemoglobin uas feem ntau pab txhawb cov pa oxygen thiab carbon dioxide tsheb thauj mus los. Kev khi ntawm oxygen molecules rau Fe+ 2 ions hloov pauv cov qauv ntawm hemoglobin molecule. Hlau atoms nyob rau hauv hemoglobin kuj pab tswj cov qauv ntawm cov ntshav liab. Yog li, hlau yog ib qho tseem ceeb hauv cov qe ntshav liab.
Daim duab 2: Cov qauv ntawm hemoglobin
Iron thiab hemoglobin txawv li cas?
Iron vs Hemoglobin |
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| Hlau yog ib yam khoom muaj nyob hauv lub cev. | Hemoglobin yog cov protein uas pom hauv cov qe ntshav liab. |
| Qhov no yog lub luag haujlwm rau ntshav synthesis, ATP tiam, DNA synthesis, oxygen thauj, carbon dioxide thauj, enzyme ntau lawm thiab lwm yam. | Qhov no yog lub luag haujlwm tseem ceeb rau kev nqa oxygen los ntawm lub ntsws mus rau lub cev cov ntaub so ntswg thiab lub cev, thiab rov qab carbon dioxide rau lub ntsws. |
| Kev sib raug zoo ntawm hlau thiab hemoglobin | |
| Iron yog ib qho tseem ceeb ntawm hemoglobin uas yog lub luag haujlwm rau lub luag haujlwm tseem ceeb ntawm hemoglobin | Hemoglobin molecule muaj plaub atoms ntawm hlau. Hlau atoms yog lub luag haujlwm rau cov qauv thiab kev ua haujlwm ntawm hemoglobin. |
Summary – Hlau vs hemoglobin
Hemoglobin yog cov hlau uas muaj cov hlau nplaum uas muaj nyob hauv cov qe ntshav liab. Nws nqa cov pa oxygen los ntawm lub ntsws mus rau cov ntaub so ntswg ntawm lub cev thiab pab txhawb lub zog tsim khoom. Nws kuj tseem xa cov pa roj carbon dioxide los ntawm cov ntaub so ntswg hauv lub cev mus rau lub ntsws. Hlau yog ib qho tseem ceeb rau kev tsim cov ntshav thiab kev ua haujlwm ntawm hemoglobin hauv cov qe ntshav liab. Nws tseem yog lub luag haujlwm rau cov xim thiab cov duab ntawm cov qe ntshav liab. Qhov no yog qhov txawv ntawm hlau thiab hemoglobin.
