Umthelela ngamathe ku isitashi

Ngo-8 ebangeni sekharikhulamu biology okungukuthi isihloko ukugaya. Lapho beqeda umsebenzi isihloko umfundi ngamunye kumele kube sobala ukuthi ukudla iqala alunge esikhathini yena kuphela ingena ngalo ingaphakathi ngomlomo. Futhi lapho ukucutshungulwa ukudla sokuqala inqubo ukugaya imikhiqizo namazinyo kanye nemiphumela ngamathe enzyme falling in the ukudla emlonyeni.

Kungani odokotela batusa ukuhlafuna, hhayi kuphela okuqinile, kodwa futhi ethambile, ukudla semi okuqinile? Kuyinto ukuze enzyme bakwazi ukukhiqiza ukucutshungulwa eyinhloko ukudla, uluhlukanise phakathi izingxenye.

Umthelela ngamathe phezu enzymatic hydrolysis of isitashi ngokuthi. Kusukela isitashi ngokwawo nemiyo inert, lesi simo senzeka bedle ukushisa futhi kulethe. Bona okwamanje iyona Amylase enzyme, elisetendeni ngamathe womuntu. Nguye ahlahlele isitashi ku izingxenye ezincane, e dextrins ethile.

Le nqubo, umuntu ngamunye uzizwa kanjani eside ukuhlafuna imikhiqizo okunesitashi, okuyinto, isibonelo, isinkwa. Ngempela, ngemva kwesikhathi esithile ungakwazi uzizwe bumnandi emlonyeni, okukhombisa ukuthi hydrolysis of isitashi waqala futhi kancane kancane ahlahlele carbohydrate. Omunye carbohydrate ebaluleke kakhulu umzimba womuntu owenziwe kahle glucose.

Esikhathini namachibi ngakho kuzo zonke cell ngomzimba womuntu eyakheke amanzi nesikhutha. Futhi lesi simo sihambisana ukukhululwa kwe amandla, ngakho kunesidingo ukuze kusebenze kuzo zonke izitho. glucose okweqile, etholakale lapho hydrolysis of isitashi, ukuguqulelwa glycogen izakhi is imali "zigciniwe" esibindini.

Ukuze abonise le nezingane bakhuthazwa ukuba benze umsebenzi laboratory "The Impact of ngamathe ku isitashi."

Biology sifundo lapho thishela uhlela ukuqhuba umsebenzi laboratory "The Impact of ngamathe ku isitashi, kutuswa ukuqala kusukela ngaphambili inhlolovo. Abafundi uphiwa imibuzo elandelayo:

1. Yini abantu ukudla ukudla?
2. Yini izakhi bayingxenye isidingo somuntu sokuba ukudla?
3. Lokho okubizwa ngokuthi ukugaya?
4. Ziyini izigaba eyinhloko ukugaya?
5. Yiziphi emizimbeni is isimiso sokugaya ukudla bungene?
6. Yini nezindlala wokugaya ukudla zinengxenye emsebenzini ngesikhathi sakusihlwa?
7. Kwenzekani emlonyeni ngesikhathi lapho umuntu odla?
8. Yiziphi imisebenzi esemqoka amazinyo nolimi esidlweni?
9. Yini kuwukuthi ngamathe?
10. Uyini umsebenzi amathe ukugaya?
11. Yini izinqubo ezenzeka isisu? Iyini indima juice esiswini?
12. Yini izinqubo ezenzeka duodenum?
13. Iyini indima Bile futhi juice pancreatic?
14. Uyini umsebenzi emathunjini amancane?
15. Yini izinqubo zenzeke emathunjini ezinkulu?

Ngalesi inhlolovo kakade washayelwa imisebenzi eyisisekelo amathe isimiso sokugaya ukudla bungene. Futhi ekupheleni engaphelele ingxoxo uthisha amasethi izingane ngenhloso elabhorethri: ukuthola okuhlangenwe nakho, lokho okungukuthi umthelela ngamathe ku isitashi, futhi inothi Yiziphi izimo ngaphansi lapho salivary enzyme zivuliwe.

Ukuze afeze laboratory umsebenzi kumele sipho abafundi Imi zibe yizicucu nenkundla square decimetre starched gauze, ukotini swab, endishini, i aqueous isixazululo iodine ezithaka imithi. Isixazululo tingafundziswa izingane ukwenza bebodwa, bephonsa amaconsi ambalwa iodine amanzi. Lolu ketshezi kufanele kube umbala itiye eqinile. Nakuba kwamukelekile ukunikeza izingane isixazululo ngomumo eyenziwe ukuze wonge isikhathi. ukupheka inqubo intsha ngeke kube yokufunda umphumela izimpendulo zemibuzo eyayinesihloko esithi "Effects amathe ku isitashi."

Ukotini swab kuyadingeka imanzise ngamathe ulobe ucezu gauze starched iyiphi incwadi. Ucezu gauze starched kufanele kube efudumele kancane ezandleni - ke oyenza isebenze enzyme ukuthi uqale umthelela wabo isitashi. Khona-ke ucezu ngaleyo ndlela iphathwa of gauze kumele ivinjelwe emanzini iodine.

Indawo lapho lasetshenziswa ngamathe ukuhlala mhlophe futhi lonke icebo uphendukela okwesibhakabhaka. Lokho, on isizinda blue azoboniswa incwadi emhlophe. Kungani lokhu kwenzeka? Ngamathe isikhathi ukubola isitashi ku yayo ingxenye izingxenye kancane siguqulelwa glucose. Iodine futhi akunamthelela glucose, ngakho incwadi alubhaliwe ngamathe uphendulela blue.

Ngemva isipiliyoni guys encwadini orekhodiwe lab, "isenzo amathe ku isitashi. Isiphetho. " Ungakwazi zisikisele imibuzo eqondile iziphetho kunesidingo kulesi senzakalo.