Qhov sib txawv tseem ceeb ntawm kev zom zaub mov thiab tshuaj lom neeg zom zaub mov yog qhov kev zom zaub mov yog hais txog cov txheej txheem ntawm lub cev zom zaub mov rau hauv cov khoom me me thaum cov tshuaj digestion yog hais txog cov txheej txheem tshuaj lom neeg zom zaub mov tshwj xeeb tshaj yog los ntawm cov enzymes me me. Cov tshuaj uas tuaj yeem nqus tau los ntawm cov hlwb.
Tib neeg yog heterotrophs; li no, peb nyob ntawm lwm qhov chaw ntawm cov khoom siv organic rau zaub mov. Kev noj haus yog hom tseem ceeb ntawm kev noj zaub mov ntawm tib neeg. Kev noj haus tsuas yog cov txheej txheem zom zaub mov hauv qhov ncauj. Thaum peb noj cov zaub mov, lawv nkag mus rau hauv peb lub plab zom mov thiab raug rau kev zom zaub mov. Kev zom zaub mov yog cov txheej txheem tawg uas tshwm sim hauv lub qhov ncauj, plab thiab duodenum ntawm lub plab zom mov. Ua ntej, cov zaub mov yuav tsum tau digested mechanically thiab ces, chemically. Raws li cov zaub mov nkag mus rau hauv lub qhov ncauj kab noj hniav, nws yog mechanically digested los ntawm cov hniav thiab chemically digested los ntawm qaub ncaug. Tsis tas li ntawd, cov tshuaj digestion loj tshwm sim nrog cov enzyme secretions los ntawm cov qog sib txawv uas cuam tshuam nrog lub plab zom mov hauv pharynx thiab oesophagus. Tom qab ntawd, peb cov ntshav absorbs cov as-ham uas tsim nyog thaum cov zaub mov digested mus hauv txoj hnyuv. Thaum kawg, peb tshem tawm cov zaub mov tsis zoo thiab cov khoom pov tseg los ntawm kev tso quav.
Mechanical Digestion yog dab tsi?
Mechanical digestion yog kev tawg ntawm cov khoom noj rau hauv cov khoom me me ntawm lub cev yam tsis muaj kev koom tes ntawm cov tshuaj. Feem ntau, qhov no pib los ntawm cov txheej txheem hu ua mastication sai li sai tau thaum peb noj zaub mov rau hauv peb lub qhov ncauj. Mastication, hauv cov ntsiab lus yooj yim, yog zom zaub mov siv peb cov hniav. Cov hniav yog cov calcified nyob rau hauv lub qhov ncauj kab noj hniav, tsim tshwj xeeb tshaj yog rau mastication ntawm zaub mov.
Daim duab 01: Mechanical digestion thiab Chemical digestion
Cov gastroliths ua haujlwm ntawm kev zom zaub mov hauv khej, ratite noog, thiab cov ntsaws ruaj ruaj. Cov no yog cov pob zeb-nyuaj cov qauv hauv cov khej lub plab. Txawm li cas los xij, tsis yog cov hniav thiab gastroliths, perist altic txav kuj tseem muaj txiaj ntsig zoo rau kev zom cov zaub mov raws li nws dhau los ntawm oesophagus, plab, thiab duodenum. Hauv lwm qhov chaw ntawm lub plab zom mov kuj tseem muaj peristalsis tshwm sim, tab sis tsis yog kev zom zaub mov. Mechanical digestion ua tiav ntawm duodenum ua ib qho tseem ceeb tshaj plaws ntawm kev pub mis.
Tshuaj Digestion yog dab tsi?
Mechanically rhuav tshem cov khoom noj khoom haus muaj cov khoom siv hauv av zoo, uas feem ntau muaj cov molecules ntev thiab nyuaj. Cov molecules no yuav tsum tau yooj yim siv tshuaj digestion kom lawv thiaj li nqus tau rau hauv lub cev. Digestive enzymes tsuas yog ua cov tshuaj lom neeg zom zaub mov. Amylase, trypsin, nuclease, protease, lipase, thiab collagenase yog qee yam ntawm cov enzymes digestive. Cov concentrations thiab muaj cov enzymes txiav txim siab ceev ntawm cov tshuaj digestion. Cov enzymes sib txawv yog lub luag haujlwm rau kev zom zaub mov ntawm lawv cov molecules tshwj xeeb (xws li proteases rau cov proteins; amylase rau carbohydrates; lipase rau lipids, thiab lwm yam).
Daim duab 02: Kev zom zaub mov
Cov khoom siv hauv nruab nrog cev ntawm lub plab zom mov yog qhov tseem ceeb hauv kev tsim cov enzymes digestive. Cov qog ua kua qaub, lub gallbladder, daim siab, thiab pancreas, yog cov caj pas tseem ceeb uas tsim cov enzymes uas tsis yog lub plab. Tsis tas li ntawd, qhov tso tawm ntawm Hydrochloric acid nyob rau hauv lub plab ua rau muaj pH acidic ib puag ncig, uas yuav pab tau ntau heev rau lub plab zom mov enzymatic. Chemically digested zaub mov yog npaj txhij rau kev nqus ntawm cov hnyuv.
Dab tsi zoo sib xws ntawm Mechanical Digestion thiab Chemical Digestion?
- Mechanical and chemical digestion is two types of digestion processes tshwm sim nyob rau hauv lub digestive system.
- Ob txoj kev zom zaub mov no pib hauv lub qhov ncauj.
- Cov txheej txheem no rhuav cov zaub mov rau hauv me me.
Qhov txawv ntawm Mechanical Digestion thiab Chemical Digestion yog dab tsi?
Mechanical digestion yog tus txheej txheem ntawm kev zom cov zaub mov rau hauv me me los ntawm kev zom, sib tsoo, nqos thiab cov leeg nqaij. Ntawm qhov tod tes, tshuaj digestion yog cov txheej txheem ntawm kev rhuav tshem cov khoom noj hauv lub qhov ncauj, plab, thiab cov hnyuv los ntawm kev siv cov kua qaub thiab enzymes. Yog li, mechanical digestion yog txheej txheem lub cev thaum cov tshuaj digestion yog cov txheej txheem tshuaj. Li no, qhov no yog qhov sib txawv tseem ceeb ntawm kev zom zaub mov thiab tshuaj digestion.
Mechanical digestion pib nrog zom thaum cov tshuaj digestion pib thaum zaub mov sib xyaw nrog qaub ncaug. Yog li ntawd, qhov no yog lwm qhov sib txawv ntawm mechanical digestion thiab chemical digestion. Txij li thaum mechanical digestion lov cov zaub mov rau hauv me me, nws yooj yim rau cov tshuaj digestion. Nyob rau hauv sib piv rau cov txheej txheem mechanical, lub enzymatic digestion hloov cov tshuaj formula thiab feem ntau cov complex chains ntawm lub molecules yog simplified nyob rau hauv xws li ib txoj kev uas lawv npaj txhij yuav absorbed.
Tsis tas li ntawd, enzymes yog lub luag haujlwm rau kev rhuav tshem cov khoom noj tshwj xeeb. Yog li ntawd, ntau qhov chaw ntawm lub plab zom mov zais cov enzymes sib txawv los zom zaub mov. Tsis tas li ntawd, kev zom zaub mov feem ntau tshwm sim hauv lub qhov ncauj thaum cov tshuaj digestion feem ntau tshwm sim hauv duodenum thiab plab. Qhov no yog lwm qhov sib txawv ntawm mechanical digestion thiab chemical digestion. Qhov sib npaug ntawm ob qho tib si ntawm kev pub mis yog qhov tsim nyog rau kev zom zaub mov kom zoo, thiab yog li ua kom lub neej noj qab haus huv.
Cov hauv qab no qhia ntxiv txog qhov sib txawv ntawm kev zom zaub mov thiab tshuaj lom neeg zom zaub mov.
Summary – Mechanical digestion vs Chemical digestion
Muaj ob hom kev zom zaub mov uas yog kev zom zaub mov thiab tshuaj lom neeg zom zaub mov. Ob txoj kev zom zaub mov pib hauv lub qhov ncauj. Mechanical digestion yog hais txog kev tawg ntawm cov khoom noj rau hauv cov khoom me me los ntawm kev siv lub cev xws li zom, sib tsoo, churning, thiab lwm yam. Ntawm qhov tod tes, tshuaj digestion yog hais txog kev tawg ntawm cov khoom noj tshuaj los ntawm cov enzymes rau hauv cov khoom me me uas tuaj yeem nqus tau rau hauv cov ntshav. Yog li ntawd, qhov no yog qhov sib txawv tseem ceeb ntawm mechanical digestion thiab chemical digestion. Mechanical digestion yog qhov tseem ceeb los pab txhawb kev zom zaub mov. Thaum cov txheej txheem digestion zom cov zaub mov rau hauv me me, enzymes muaj peev xwm hydrolyze cov zaub mov rau hauv me me molecules. Yog li ntawd, ob txoj kev zom zaub mov yog qhov tseem ceeb los ua kom tiav kev zom zaub mov thiab nqus cov as-ham tsim nyog rau lub cev.
