Physical vs Chemical digestion
Cov txheej txheem ntawm kev zom cov zaub mov hauv theem pib kom tau txais cov as-ham hauv cov zaub mov hu ua digestion. Cov khoom noj uas tau txais hauv cov txheej txheem no yog tom qab ntawd nkag mus rau hauv lub cev thiab xa mus thoob plaws lub cev nrog cov ntshav. Cov as-ham no yog qhov tseem ceeb rau kev muab lub zog los yog kev sib txuas ntawm cov khoom tshwj xeeb uas lub cev xav tau. Kev zom zaub mov yog pib los ntawm lub cev thiab tshuaj. Ob hom kev zom zaub mov yog qhov tseem ceeb kom nce tus nqi ntawm kev zom zaub mov thiab muab cov khoom noj kom zoo. Feem ntau cov khoom noj yog loj thiab nyuaj rau rho tawm cov as-ham ncaj qha los ntawm lawv. Yog li ntawd, nws yuav tsum tau txiav cov zaub mov ua ntej siv cov txheej txheem ntawm lub cev thiab tom qab ntawd hydrolyze cov as-ham enzymatically rau me me molecules siv cov txheej txheem tshuaj.
Lub cev digestion
Lub cev zom zaub mov yog kev zom cov khoom noj rau hauv cov khoom me me los ntawm cov txheej txheem ntawm lub cev xws li zom, zom thiab lwm yam. Nws yog ua tiav los ntawm cov hniav, plab hnyuv thiab cov kua tsib. Lub cev zom zaub mov ua rau thaj tsam saum npoo rau cov tshuaj tiv thaiv enzymatic, yog li ua rau cov tshuaj tiv thaiv tsis ncaj.
Tshuaj Digestion
Cov txheej txheem ntawm kev hloov cov zaub mov rau hauv cov khoom me me los ntawm cov tshuaj tiv thaiv enzymatic raug xa mus rau kev zom zaub mov. Enzymes yog siv los catalysis cov tshuaj tiv thaiv los ntawm kev faib cov tshuaj sib txuas hauv cov txheej txheem ntawm hydrolysis. Muaj peb hom digestive enzymes, uas yog; carbohydrates, lipases, thiab proteases, uas hydrolysis carbohydrates, rog, thiab proteins feem. Cov enzymes no muaj nyob rau hauv cov qaub ncaug, kua txiv hmab txiv ntoo, kua txiv hmab txiv ntoo, thiab cov kua txiv hmab txiv ntoo, tso tawm los ntawm cov qog ua kua qaub, cov qog nqaij hlav, pancreas, thiab phab ntsa ntawm cov hnyuv feem. Kev tso tawm ntawm cov enzymes digestive yog pib los ntawm kev cia siab, reflex stimulation, cov tshuaj hormones los yog direct mechanical stimulation.
Dab tsi yog qhov txawv ntawm Lub Cev Digestion thiab Chemical Digestion?
• Lub cev zom zaub mov cuam tshuam nrog lub cev hloov pauv thaum kev zom tshuaj lom neeg muaj cov tshuaj hloov pauv hauv cov zaub mov.
• Lub cev zom zaub mov pab txhawm rau zom cov zaub mov loj rau hauv cov khoom me me, thaum cov tshuaj zom zom zom cov khoom loj rau hauv cov khoom me me.
• Tshuaj digestion muaj cov enzymes thiab enzymatic ua, thaum lub cev zom zaub mov muaj kev ua lub cev xws li zom, zom thiab zom zaub mov.
• Lub cev zom zaub mov ua rau thaj chaw muaj tshuaj lom neeg zom zaub mov thiab nce tus nqi ntawm cov tshuaj tiv thaiv enzymatic, qhov kev zom zaub mov tso cai nqus cov khoom noj me me rau hauv cov ntshav.
• Cov hniav, cov nqaij ntshiv thiab kev ua haujlwm ntawm cov kua tsib pab kom ua tiav lub cev zom zaub mov thaum cov tshuaj zom zaub mov ua tiav los ntawm cov enzymes digestive.
