Blindly kaw digestive system muaj tej tsiaj?

Tus nqi ntawm tus txheej txheem ntawm kev zom thiab cov metabolism hauv tej mus muaj sia nyob yog heev yooj yim mus overestimate. Tseeb, lub hav zoov tsis muaj nws tsuas yog tsis yooj yim sua. Nyob rau hauv no tsab xov xwm peb xav txog nyob rau hauv kom meej lub essence ntawm cov dab, tshwj xeeb tshaj yog cov qauv thiab cov hom ntawm digestive systems nyob rau hauv sib txawv pawg ntawm cov tsiaj.

Yuav ua li cas yog metabolism?

Khoom noj khoom haus yog ib qho tseem ceeb feature ntawm tag nrho cov nyob nrog ua tsis taus pa, lub zog, thiab tu tub tu kiv adaptability. Lub zog ntawm cov digestive system, thawj thiab foremost, yog siv rau qhov metabolism. Lawv nkag mus rau hauv lub cev, lawv hloov dua siab tshiab, thiab ces tso zis hauv therefrom. Qhov no muaj nuj nqi yog ua los ntawm tsis tsuas yog tus digestive system. Piv txwv li, vim ua pa ua si nyob rau hauv tag nrho cov hlwb ntawm lub cev nkag nrog cov pa thiab ua cov pa roj carbon dioxide.

Lub zog ntawm cov digestive system

Nyob rau hauv lub digestive system, cov nqaijrog, carbohydrates, lipids, mineral ntsev, vitamins thiab dej muaj nyob rau hauv nyob tus yeees ntawm ntau yam khoom yog raug rau txhua yam thiab tshuaj nres. Qhov no proihodit vim hais tias lub cev yog tsis tau metabolize lawv unchanged. Yog li ntawd, tag nrho cov tshuaj nyob rau hauv cov hnyuv yog phua rau hauv me me sawv daws yuav, yog absorbed rau hauv cov hlab ntsha thiab absorbed. Raws li ib tug tshwm sim, lub cev tau txais lub zog yuav tsum tau rau tag nrho lub neej muaj dab.

Puas muaj lub neej tsis muaj lub digestive system puas tau?

Thaum xub thawj siab ib muag lo lus nug no tej zaum yuav zoo li coj txawv txawv. Tab sis muaj cov tsiaj uas tsis tas yuav mus ua txhaum down as-ham. Lawv tau lawv npaj txhij-ua. Qhov no yog tshwj xeeb tshaj yog cab cab. Lawv nyob rau hauv cov hnyuv ntawm cov tsiaj thiab tib neeg ducts. Piv txwv li, ib tug neeg sawv cev ntawm cov chav kawm ntawv Tapeworms - bovine tapeworm absorbs as-ham los npog. Nyob rau tib lub sij hawm nws ua tseem ceeb raug mob rau tus tswv tsev kab, lom nws cov zaub mov xaiv.

Hom ntawm digestive system qauv

Tus qauv ntawm lub digestive system tej zaum yuav muaj ob peb hom. Nws yog nyob ntawm cov qauv ntawm cov pub mis. Feem ntau cov tsiaj muaj los ntawm lub digestive system. Nws yog sawv cev los ntawm ib tug raj ntawm txawv ntev, qhib rau ob hnub. Yog li, nws yog nyob rau hauv ib tug muaj plaub qhov ncauj kab noj hniav, lub caj pas, hlab pas, plab, hnyuv thiab qhov quav, los ntawm kev uas sawv tawm undigested zaub mov. Blindly kaw digestive system yog tag nrho cov mej zeej ntawm lub hom Coelenterates. Yuav ua li cas yog nws lub koom haum?

Kaw digestive system

Scheme digestive system ntawm ib tug kaw hom yog ntau yooj yim. Qhov no yog lub qhov ncauj thiab plab hnyuv kab noj hniav. Undigested zaub mov residue li mus sab nraum nws yog los ntawm lub qhov ncauj. Blindly kaw digestive system muaj ib tug Hydra, jellyfish thiab polyps. Lawv yog cov sib txawv txoj kev ntawm lub neej. Tab sis cov qauv ntawm cov khoom hauv nrog cev systems txuam nrog lub hwj chim txhais tau tias. Lawv yog cov tag nrho cov ua npua. Pab lawv mus plob hav zoov lub tentacles, uas yog tshwj xeeb stinging hlwb. Lawv muaj xws li tsiav tshuaj thiab mob cov xov, uas xaus nyob rau hauv ib tug ntse koob. Nyob rau saum npoo ntawm tej hlwb yog rhiab cov plaub hau. Thaum nws los txog rau tus neeg lub cev, stinging reflex xov nrog quab yuam spins thiab tom mus rau hauv lub ntau lawm lub cev, paralyzing nws. Yog hais tias koj twb puas tau muaj tus hlawv ntawm jellyfish, koj yuav tau yooj yim xav txog tej yam cov nyhuv ntawm cov formations. Los ntawm cov khoom noj khoom haus, stinging xov tam sim ntawd tuag thiab tsis tau ua nws lub zog. Ib tug tshiab daim ntawv nrog ib tug txawv hom ntawm tes - kev kawm ntawv.

hom Coelenterates

Tag nrho cov mej zeej ntawm lub tsev muaj ib tug systematic tsiaj plab hnyuv kab noj hniav. Nrog rau qhov no feature, qauv, thiab txuam lawv lub npe. Blindly kaw digestive system yog feem ntau dej tsis qab ntsev Hydra. Lawv txuas txoj kev ua neej. Lawv ib statically nyob rau lub substrate thiab nyob rau sab nraud ntawm lub cev yog lub qhov ncauj. Nws yog surrounded los ntawm tentacles, uas yog siv rau kev ntes prey. Cov no yog cov me me crustaceans, kab kab thiab me me ntses. Thaum los ntawm cov tentacles hauv lub plab hnyuv lumen, cov zaub mov yog raug mus rau lub kev txiav txim ntawm enzymes uas ua los ntawm tshwj xeeb glandular hlwb. Nyob rau hauv tus ntawm cov lom catalysts, nws lov rau hauv daim me me. Tus txheej txheem ntxiv nyob rau hauv lub digestive Hydra hlwb puab phab ntsa ntawm lub cev uas muaj pseudopodia. Tiav kev zom rau hauv tshwj xeeb vacuoles. Ib tug residues tshuaj yog tas los ntawm lub qhov ncauj. Ib yam li ntawd, nws tshwm sim thiab jellyfish thiab polyps, muaj kaw lub digestive system.

hom Flatworms

Blindly kaw digestive system yog tag nrho cov neeg ntawm lub hom pav ca cua nab. Nws yog sawv cev los ntawm lub hauv pem hauv ntej thiab nruab nrab hnyuv, xaus blindly. Raws li rau qhov haum thiab rau qee ntawm cov khoom noj khoom haus yog lub qhov ncauj. Txawm tias muaj tseeb hais tias flatworms yuav tsum tau txais lub yeeb koob ntawm lub feem ntau txaus ntshai cab ntawm tib neeg thiab tsiaj, ntawm lawv tseem muaj free-nyob hom. Cov no muaj xws marine thiab dej tsis qab ntsev planarians. Nyob rau hauv lub dej puag ncig lawv mus yos hav zoov hydras, me me crustaceans, tsiaj txhu, shellfish thiab kab kab. Thiab prey lawv ntes nyob rau hauv ib tug txawv txawv txoj kev. Planarian nkag hauv tus neeg lub cev, lo lawv proboscis los ntawm lub qhov ncauj thiab siv nws los nqus tag nrho cov txheem ntawm tus neeg mob. Qhov no yog tau vim tias ntawm lwm txawv txawv yam ntxwv nta. Qhov tseeb hais tias lub qhov ncauj ntawm free flatworms nyob rau lawv plab mog.

Yog li, cov qauv ntawm cov digestive system feem ntau yog nyob ntawm seb tus tsiaj kev noj haus. Thiab coelenterates, thiab flatworms uas nyob rau hauv ntsev thiab dej tshiab, yog ua npua. Lawv digestive system blindly kaw thiab pib ib tug kab noj hniav los yog ib tug raj nrog ib nplooj siab qhib los ntawm kev uas cov khoom noj yog nkag thiab, tom qab lub conversion thiab yog tas.