Video: Puas yog mosses muaj pores?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Cov txheej txheem ntawm epidermal mos txwv gametophyte tej zaum yuav muaj cutin los tiv thaiv desiccation nyob rau hauv lub terrestrial ib puag ncig, yog hais tias yog li ntawd, lub thallus ces xav tau. pores tso cai rau kev sib pauv roj. Hauv qee qhov mos txwv tus yog pores puag ncig los ntawm ib leeg "donut shaped" tus neeg saib xyuas ntawm tes. Hauv lwm tus peb yuav pom qhov ua haujlwm tiag tiag stomata.
Hauv nws, puas muaj mosses muaj stomata?
Mosses thiab hornworts yog qhov ntxov tshaj plaws ntawm cov nroj tsuag thaj av mus rau muaj stomata , tab sis tsis zoo li cov nyob rau hauv tag nrho lwm cov nroj tsuag, bryophyte lub plab nyob tshwj xeeb tshaj yog nyob rau ntawm sporangium ntawm sporophyte. Stomata ntawm nplooj thiab qia ntawm tracheophytes tau koom nrog hauv kev sib pauv roj thiab thauj dej.
Ib tus kuj yuav nug, cov mosses puas muaj paj ntoos? Mosses ua tsis siv paj ntoos nplej rau kev yug me nyuam. Hloov chaw, lawv tsim cov spores uas siv cov dej noo kom germinate thiab nws thiaj li raug fertilization los tsim ib lub embryo. Paj noob hlis yog txiv neej txiv neej cell ntawm ob qho angiosperms (paj paj) thiab gymnosperms (cone-ua nroj tsuag).
Tsis tas li ntawd, cov mosses puas muaj cuticle?
Ib ntu ntawm nplooj ntawv qhia tau hais tias feem ntau ntawm nws tsuas yog ib lub cell tuab. Tsis muaj epidermis, tsis yog daim tawv nqaij , thiab tsis muaj stomata. Txij thaum mos txwv nplooj tsis muaj a daim tawv nqaij , lawv yuav raug ziab tawm. Qhov tsis muaj a daim tawv nqaij kuj txhais tau tias mos txwv tuaj yeem nqus dej ncaj qha rau hauv lawv cov nplooj hauv qhov chaw ntub.
Dab tsi yog qhov hloov pauv ntawm moss?
Mosses raug suav hais tias tsuas yog qee qhov hloov mus rau thaj av vim tias lawv tsis yog cov hlab ntsha nroj tsuag . Moss tau yoog rau lub neej hauv av los ntawm kev muaj tuab ntawm tes phab ntsa uas muab kev txhawb nqa. Nws tseem muab thaj chaw tshwj xeeb rau dej thiab cov as -ham.
Pom zoo:
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