Qhov sib txawv tseem ceeb ntawm kev zom cov protein hauv plab thiab cov hnyuv me yog qhov kev zom cov protein hauv lub plab tshwm sim los ntawm pepsin thiab hydrochloric acid thaum cov protein zom hauv cov hnyuv me tshwm sim los ntawm trypsin thiab chymotrypsin secreted los ntawm pancreas.
Cov khoom noj uas peb noj yog raug tshuaj lom neeg thiab kev zom zaub mov hauv lub plab zom mov. Thaum cov zaub mov tau digested, cov as-ham yog absorbed rau hauv peb cov hlab ntsha los ntawm txoj hnyuv me. Protein digestion tshwm sim nyob rau hauv ob theem: nyob rau hauv lub plab thiab nyob rau hauv thawj ib feem ntawm cov hnyuv me (duodenum) los ntawm proteases. Hauv plab, pepsin zom cov proteins rau hauv cov amino acids thiab oligopeptides. Kev zom ntxiv ntawm oligopeptides rau hauv cov amino acids, dipeptides thiab tripeptides tshwm sim hauv cov hnyuv me los ntawm pancreatic enzymes.
Y Yam Protein Digestion hauv plab yog dab tsi?
Protein digestion pib hauv plab. Nws yog thawj theem lossis theem npaj ntawm kev zom cov protein. Thaum cov zaub mov nkag mus rau hauv lub plab, nws txhawb nqa G hlwb ntawm cov mucosa ntawm lub plab antrum thiab proximal duodenum, uas tso cov tshuaj hormones rau hauv cov hlab ntsha. Cov tshuaj hormones txhawb kev tsim thiab tso tawm ntawm hydrochloric acid rau hauv lub plab. Cov kua txiv hmab txiv ntoo, vim nws cov pH tsawg, ua kom pepsin thiaj li zom cov proteins rau hauv cov amino acids.
Daim duab 01: Protein digestion
Pepsin yog thawj enzyme koom nrog hauv kev zom cov protein hauv plab. Pepsin hydrolyses 10-20% ntawm cov proteins hauv cov pluas noj. Yog li ntawd, kev sib xyaw ntawm peptides thiab amino acids yog tsim nyob rau hauv lub plab. Kev zom ntxiv ntawm peptides tshwm sim hauv thawj feem ntawm txoj hnyuv me los ntawm cov enzymes secreted los ntawm pancreas.
Yuav ua li cas yog Protein digestion nyob rau hauv cov hnyuv me?
Protein digestion nyob rau hauv cov hnyuv me yog theem thib ob lossis zaum kawg ntawm kev zom cov protein hauv cov zaub mov. Thaum cov ntsiab lus ntawm plab mus txog duodenum, acidity ntawm cov ntsiab lus txhawb nqa S hlwb los tsim thiab tso cov tshuaj hormone secretin rau hauv cov hlab ntsha. Cov tshuaj hormones txhawb kev tso tawm ntawm alkaline pancreatic kua txiv txhawm rau txhawm rau tshem tawm cov ntsiab lus ntawm plab mus rau hauv nruab nrab pH. Tsis tas li ntawd, cov amino acids nyob rau hauv cov ntsiab lus ntawm plab zom mov txhawb lub exocrine pancreas kom tso cov kua txiv hmab txiv ntoo nplua nuj nyob rau hauv trypsinogen, chymotrypsinogen thiab proelastase. Lawv yog cov inactive precursors - lub zymogens. Cov zymogens tom qab ntawd qhib rau hauv trypsin thiab chymotrypsin thiab nqa tawm ntxiv zom cov proteins hauv duodenum. Cov enzymes no txiav cov proteins rau hauv polypeptides thiab tom qab ntawd thaum kawg mus rau hauv cov amino acids.
Dab tsi yog qhov zoo sib xws ntawm Protein digestion hauv plab thiab hnyuv me?
- Protein digestion hauv plab thiab cov hnyuv me yog ob theem ntawm kev zom cov protein.
- Enzymes catalyze ob theem.
Qhov txawv ntawm Protein digestion hauv plab hnyuv thiab plab hnyuv me yog dab tsi?
Protein digestion hauv plab yog thawj theem ntawm kev zom cov protein uas yog catalyzed los ntawm pepsin. Hauv qhov sib piv, kev zom cov protein hauv cov hnyuv me yog theem thib ob ntawm kev zom cov protein uas yog catalyzed los ntawm trypsin thiab chymotrypsin. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm kev zom cov protein hauv plab thiab cov hnyuv me.
Ntxiv mus, hauv plab, kev zom cov protein tshwm sim nyob rau hauv ib puag ncig acidic thaum nyob hauv cov hnyuv me, kev zom cov protein tshwm sim hauv qhov chaw nruab nrab.
Hauv qab infographic qhia ntau cov ntsiab lus ntawm qhov sib txawv ntawm kev zom cov protein hauv plab thiab cov hnyuv me.
Summary – Protein digestion in plab hnyuv vs Me
Protein digestion nyob rau hauv lub plab yog catalyzed los ntawm HCl thiab pepsin thaum protein zom nyob rau hauv cov hnyuv me yog catalyzed los ntawm ob enzymes hu ua chymotrypsin thiab trypsin. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm kev zom cov protein hauv plab thiab cov hnyuv. Protein digestion nyob rau hauv lub plab yuav tshwm sim nyob rau hauv acidic ib puag ncig thaum lub protein zom nyob rau hauv cov hnyuv me yuav tshwm sim nyob rau hauv ib tug nruab nrab ib puag ncig.
