Qhov sib txawv tseem ceeb ntawm cov ntaub so ntswg yooj yim thiab cov ntaub so ntswg tas mus li yog qhov yooj yim cov ntaub so ntswg tas mus li tsuas muaj ib hom cell thaum cov ntaub so ntswg complex muaj ntau hom hlwb uas muaj qhov sib txawv thiab ua haujlwm sib txawv. Lwm qhov sib txawv tseem ceeb ntawm cov ntaub so ntswg yooj yim thiab cov ntaub so ntswg tas mus li yog qhov yooj yim cov ntaub so ntswg tas mus li muaj nyob rau hauv txhua qhov chaw ntawm cov nroj tsuag whereas complex cov ntaub so ntswg yog tam sim no feem ntau nyob rau hauv vascular ntaub so ntswg.
Nroj tsuag muaj ntau hom ntaub so ntswg. Raws li kev muaj peev xwm rau lawv txoj kev faib tawm, muaj ob hom ntaub so ntswg uas yog meristematic cov ntaub so ntswg thiab cov ntaub so ntswg mus tas li. Cov ntaub so ntswg meristematic muaj cov hlwb tsis sib xws uas muaj peev xwm sib faib. Cov ntaub so ntswg tas mus li yog los ntawm cov ntaub so ntswg meristematic. Tsis tas li ntawd, cov ntaub so ntswg mus tas li muaj cov hlwb sib txawv uas tsis muaj peev xwm sib faib. Muaj peb hom ntaub so ntswg mus tas li, thiab cov ntaub so ntswg yooj yooj yim thiab cov ntaub so ntswg ruaj khov yog ob hom ntawm lawv.
Cov ntaub so ntswg yooj yim yog dab tsi?
Cov ntaub so ntswg yooj yim yog ib hom ntawm cov ntaub so ntswg uas muaj ib hom cell. Tag nrho nws cov hlwb yog structurally thiab functionally zoo sib xws. Lawv muaj nyob rau hauv yuav luag txhua qhov chaw ntawm cov nroj tsuag. Muaj peb yam tseem ceeb ntawm cov ntaub so ntswg; parenchyma, collenchymas, thiab sclerenchyma.
Daim duab 01: Daim Npog Yooj Yim Yooj Yim
Parenchyma hlwb yog daim ntawv yooj yim tshaj plaws ntawm cov nroj tsuag. Nws yog daim ntawv tshaj plaws tam sim no hauv pith, cortex, pericycle, epidermis, nplooj, txiv hmab txiv ntoo, hauv paus, thiab lwm yam. Parenchyma hlwb qhia me ntsis tshwj xeeb. Collenchyma hlwb yog hom thib ob, uas muaj zog thiab elastic. Lawv yog cov elongated hlwb. Sclerenchyma hlwb muaj ntau elongated thiab lignified. Li no lawv yog cov hlwb uas muab txhua yam kev txhawb nqa rau cov nroj tsuag. Vim cov thickening theem nrab, lawv yog cov hlwb tuag, tsis zoo li parenchyma thiab collenchymas, uas yog cov hlwb nyob.
Cov ntaub so ntswg tas mus li yog dab tsi?
Cov ntaub so ntswg ruaj khov yog cov ntaub so ntswg uas muaj ntau hom hlwb. Cov hlwb no ua haujlwm sib txawv hauv cov ntaub so ntswg. Txawm li cas los xij, txhua lub hlwb yog cov hlwb sib txawv thiab tshwj xeeb. Xylem thiab phloem yog ob hom loj ntawm cov ntaub so ntswg mus tas li hauv cov nroj tsuag.
Daim duab 02: Vascular Tissue
Xylem ua dej thiab cov zaub mov thoob plaws hauv cov nroj tsuag. Nws muaj plaub hom cell: xylem hlab ntsha, tracheids, xylem fibers, thiab xylem parenchyma. Phloem cov ntaub so ntswg thauj cov as-ham los ntawm nplooj mus rau lwm qhov chaw cog. Nws yog tsim los ntawm sieve hlwb, khub hlwb, phloem fibers, thiab phloem parenchyma.
Dab tsi yog qhov zoo sib xws ntawm cov ntaub so ntswg yooj yim thiab cov ntaub so yooj yim?
- Cov ntaub so ntswg yooj yim thiab cov ntaub so ntswg tas mus li yog ob hom cog cov ntaub so ntswg.
- Ob leeg muaj cov khoom sib sau ua ke.
- Ob hom ntaub so ntswg ua haujlwm tseem ceeb hauv cov nroj tsuag.
- Lawv muaj cov hlwb sib txawv.
- Ob leeg pib los ntawm cov ntaub so ntswg meristematic.
Dab tsi yog qhov txawv ntawm cov ntaub so ntswg yooj yim thiab cov ntaub so yooj yim?
Cov ntaub so ntswg yooj yim yog tsim los ntawm ib hom cell. Ntawm qhov tod tes, cov ntaub so ntswg mus tas li muaj ntau hom hlwb uas ua haujlwm ntau yam. Parenchyma, collenchyma, thiab sclerenchyma yog cov ntaub so ntswg yooj yooj yim thaum xylem thiab phloem yog cov ntaub so ntswg tas mus li. Ntxiv mus, cov ntaub so ntswg yooj yooj yim muaj nyob rau hauv txhua qhov chaw ntawm cov nroj tsuag whereas complex cov ntaub so ntswg yog tam sim no feem ntau nyob rau hauv vascular ntaub so ntswg.
Summary – Tej yam yooj yim Permanent ntaub so ntswg vs Complex Permanent Tissue
Cov ntaub so ntswg tas mus li muaj cov hlwb sib txawv. Muaj ob yam tseem ceeb ntawm cov ntaub so ntswg mus tas li; lawv yog cov ntaub so ntswg yooj yooj yim thiab cov ntaub so ntswg mus tas li. Qhov sib txawv tseem ceeb ntawm cov ntaub so ntswg yooj yooj yim thiab cov ntaub so ntswg ruaj khov yog hom cell uas lawv muaj.
