Tracheids pabcuam rau kev txhawb nqa thiab kev nce qib ntawm cov dej thiab cov ntxhia hauv cov nroj tsuag vascularthiab tsuas yog cov ntsiab lus hauv conifers thiab ferns. See also nkoj.
Dab tsi yog txoj haujlwm ntawm tracheids thiab cov hlab ntsha?
Tracheids thiab hlab ntsha yog cov khoom ntawm cov ntaub so ntswg xylem complex. Ob leeg pab hauv kev ua dej raws li qia thiab muab kev txhawb nqa rau cov nroj tsuag. Ob lub cell yog tubular. Secondary lignification muaj nyob rau hauv ob lub hlwb.
Dab tsi yog tracheids thiab nws txoj haujlwm?
Ib tug tracheid yog ib tug ntev, lignified cell nyob rau hauv lub xylem ntawm vascular nroj tsuag. … Thaum laus lawm, tracheids tsis muaj protoplast. Lub luag haujlwm tseem ceeb yog thauj dej thiab cov ntsev inorganic, thiab muab kev txhawb nqa rau cov ntoo.
Kev ua haujlwm ntawm tracheids Chav Kawm 9 yog dab tsi?
Tracheids: Tuag, tube-zoo li lub hlwb nrog lub tapering kawg. Lawv feem ntau muaj nyob rau hauv gymnosperm thiab qis angiosperm. Lawv muaj ib tug tuab lignified phab ntsa thiab tsis muaj protoplasm. Lawv lub luag haujlwm tseem ceeb yog kev thauj mus los hauv dej thiab ntxhia.
Kev ua haujlwm ntawm tracheids hauv biology yog dab tsi?
Tracheids yog elongated hlwb nyob rau hauv xylem ntawm vascular nroj tsuag uas pabcuam hauv kev thauj cov dej thiab cov ntsev ntsev. Tracheids yog ib qho ntawm ob hom tracheary ntsiab, cov hlab ntsha yog lwm yam.
