Vim li cas qis qis qis dua muaj stomata ntau dua li daim tawv nqaij sab saud?

Video: Vim li cas qis qis qis dua muaj stomata ntau dua li daim tawv nqaij sab saud?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

Kev piav qhia: Txhua qhov chaw ntawm nplooj muaj qee qhov ntawm lub plab txhawm rau tswj kev sib pauv roj rau photosynthesis. Txawm li cas los xij, cov qis epidermis (underside ntawm nplooj ) muaj ntau , vim nws yog ntau feem ntau nyob hauv qhov ntxoov ntxoo thiab yog li nws txias dua, uas txhais tau tias evaporation yuav tsis tshwm sim ntau npaum li cas.

Ua li no, uas muaj ntau stomata sab saud lossis qis dua?

Kev sib pauv ntawm cov pa thiab cov pa roj carbon dioxide hauv cov nplooj, nrog rau kev ua kom cov dej ua pa poob, tshwm sim los ntawm qhov pores hu ua lub plab (tus kheej = stoma ). Cov qis epidermis ntawm nplooj ntawv nyhav muaj a siab dua total than cov sab sauv nto. Qhov nruab nrab tus naj npawb ntawm stomata yog hais txog 300 ib square mm ntawm nplooj nplooj.

Ib yam nkaus, daim tawv nqaij sab sauv thiab qis ua dab tsi hauv nplooj? Nws muaj cov qaum thiab qis epidermis , uas muaj nyob ntawm ob sab ntawm nplooj . Cov epidermis pab hauv txoj cai tswj kev pauv roj. Nws muaj stomata, uas yog qhib los ntawm kev sib pauv cov roj cua. Ob lub hlwb tiv thaiv ib puag ncig txhua lub stoma, tswj nws qhov qhib thiab kaw.

Dhau li, vim li cas thiaj muaj tsawg stomata nyob rau saum nplooj?

cov sab sauv ib feem ntawm nplooj muaj tsawg stomata vim on sab sauv ib feem lawv raug ntau dua rau hnub ci thiab cua. Muaj yog ntau stomata ntawm qhov qis vim tias nws txo tus nqi ntawm evaporation li lawv tsis muaj tshav ntuj ntau lawv.

Cov tawv nqaij sab saud sab saud ua dab tsi?

Hauv qab ntawm lub cuticle yog lub epidermis . Nyob rau saum lub nplooj , qhov no yog lub npe hu ua Upper epidermis . Qhov no yog ib txheej txheej ntawm cov cell pom ncaj qha hauv qab cov cuticle. Nws pab tiv thaiv cov nplooj los ntawm kev pab tiv thaiv kev poob dej thiab muab ib txheej ntxiv ntawm sab nraud thiab sab hauv nplooj.

Pom zoo:

Dab tsi yog txheej txheej sab saum toj ntawm daim tawv nqaij nyob ib sab ntawm daim tawv nqaij?

Lub dermis txuas cov epidermis mus rau hypodermis, thiab muab lub zog thiab kev ywj pheej vim muaj cov collagen thiab elastin fibers. Nws tsuas muaj ob txheej: txheej txheej papillary nrog papillae uas nthuav mus rau hauv daim tawv nqaij thiab qis dua, txheej txheej reticular uas muaj cov ntaub so ntswg sib txuas xoob

Dab tsi yog qhov txawv ntawm daim tawv nqaij thiab daim tawv nqaij daim ntawv xeem?

Qauv: Sib sib zog nqus ntawm daim tawv nqaij; connective ntaub so ntswg muaj li ntawm ob txheej. Muaj nuj nqi: Muaj lub luag haujlwm rau cov txheej txheem muaj zog thiab yoog raws ntawm daim tawv nqaij; lub epidermis pauv cov pa roj, cov khoom noj, thiab cov khoom pov tseg nrog cov hlab ntsha hauv lub dermis

Puas yog lo lus dav dav txhais tau tias yog mob ntawm daim tawv nqaij lossis pob khaus uas tuaj yeem muaj ntau yam ua rau nws yog ib qho cim ntawm ntau hom tawv nqaij tsis xws luag?

Dermatitis yog lo lus dav dav uas piav txog kev ua rau tawv nqaij. Dermatitis yog ib yam mob uas muaj ntau yam ua rau thiab tshwm sim ntau yam. Nws feem ntau yog khaus, tawv nqaij qhuav los yog pob khaus ntawm daim tawv nqaij o, reddened

Npaum li cas ntawm daim tawv nqaij thiab daim tawv nqaij?

txog 2 hli Ua raws li qhov no hauv kev txiav txim siab, tuab npaum li cas ntawm cov epidermis nyob tom qab? Dermis thiab subcutaneous rog Nws yog tuab (nruab nrab 1 txog 4 hli) tshaj li daim tawv nqaij uas yog hais txog nyias li daim ntawv.