Cov ntsiab lus tracheary tuag, hollow hlwb nrog cov qauv cell phab ntsa suav nrog xylem hlab ntsha thiab tracheids, uas ua haujlwm raws li conductive hollow raj rau dej thiab cov khoom thauj thoob plaws hauv lub cev cog . Xylem fiber cells, nrog cov tuab tuab ntawm cov phab ntsa ntawm phab ntsa theem nrab phab ntsa Cov phab ntsa ntawm phab ntsa theem nrab yogqauv pom nyob hauv ntau cov nroj tsuag, nyob nruab nrab ntawm cov phab ntsa thawj cell thiab cov plasma membrane. … Ob phab ntsa cell muab kev tiv thaiv ntxiv rau cov hlwb thiab rigidity thiab lub zog rau cov nroj tsuag loj. https://en.wikipedia.org › wiki › Secondary_cell_wall
Secondary cell wall - Wikipedia
muab kev txhawb nqa txhua yam rau lub cev cog.
Dab tsi yog lub luag haujlwm ntawm tracheids?
Tracheids yog elongated hlwb uas thauj dej thiab ntxhia ntsev los ntawm xylem ntawm vascular nroj tsuag. Tracheids yog ib qho ntawm ob pawg ntawm tracheary ntsiab. Lwm qhov yog cov hlab ntsha. Tracheids tsis muaj daim hlau perforation, tsis zoo li cov khoom hauv nkoj.
Dab tsi yog cov ntsiab lus tracheids?
Tracheid, hauv botany, primitive element of xylem (kua-ua cov ntaub so ntswg), muaj xws li ib tug elongated cell nrog taw tes xaus thiab ib tug thib ob, cellulosic phab ntsa thickened nrog lignin (tshuaj binding tshuaj) muaj ntau lub qhov tab sis tsis muaj perforations nyob rau hauv thawj cell phab ntsa.
yog dab tsimuaj nuj nqi ntawm cov hlab ntsha?
Vessel ntsiab yog lub tsev thaiv cov hlab ntsha, uas yog qhov tseem ceeb ntawm dej thauj khoom hauv cov nroj tsuag uas lawv tshwm sim. Cov nkoj tsim ib qho kev ua haujlwm zoo rau kev thauj dej (nrog rau cov zaub mov tsim nyog) los ntawm cov hauv paus mus rau nplooj thiab lwm qhov chaw ntawm cov nroj tsuag.
Dab tsi yog Tracheary ntsiab 10?
Tracheary ntsiab yog tuag, hollow cells uas muaj cov phab ntsa ntawm tes. > Tracheary ntsiab muaj xws li xylem hlab ntsha thiab tracheids.
