Cov txheej txheem:
- Vim li cas cov ntaub so ntswg meristematic muaj nyob hauv cov nroj tsuag?
- Cov piv txwv meristematic yog dab tsi?
- Cov hlwb meristematic yog dab tsi thiab lawv feem ntau pom nyob rau hauv cov nroj tsuag nyob qhov twg?
- Puas muaj cov ntaub so ntswg meristematic hauv nplooj?
Video: Thaum twg cov ntaub so ntswg meristematic pom hauv cov nroj tsuag?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Meristematic cov ntaub so ntswg muaj nyob rau hauv ntau qhov chaw, suav nrog ze rau cov lus qhia ntawm cov hauv paus hniav thiab stems (apical meristems), nyob rau hauv lub buds thiab nodes ntawm stems, nyob rau hauv lub cambium ntawm lub xylem thiab phloem nyob rau hauv cov ntoo dicotyledonous thiab shrubs, nyob rau hauv lub epidermis ntawm dicotyledonous ntoo thiab shrubs (cork cambium), thiab nyob rau hauv pericycle ntawm …
Vim li cas cov ntaub so ntswg meristematic muaj nyob hauv cov nroj tsuag?
Thaj chaw uas cov hlwb muaj nyob yog hu ua meristem. Cov hlwb ntawm cov ntaub so ntswg meristematic faib nquag tsim cov qauv tshwj xeeb xws li buds ntawm nplooj thiab paj, cov lus qhia ntawm cov hauv paus hniav thiab tua, thiab lwm yam. Cov hlwb no pab kom ntev thiab girth ntawm cov nroj tsuag
Cov piv txwv meristematic yog dab tsi?
Ib qho piv txwv ntawm thawj meristem yog apical meristem . Apical meristems yog cov ntaub so ntswg meristematic nyob rau hauv apices ntawm cov nroj tsuag, xws li. root apex thiab tua apex.
Primary meristem
- meristem.
- secondary meristem.
- apical meristem.
Cov hlwb meristematic yog dab tsi thiab lawv feem ntau pom nyob rau hauv cov nroj tsuag nyob qhov twg?
Lub cev nqaij daim tawv thiab tunica ua si ib qho tseem ceeb ntawm cov nroj tsuag lub cev zoo li tag nrho cov nroj tsuag yog tsim los ntawm meristems. Apical meristems pom muaj nyob rau hauv ob qhov chaw: cag thiab qiaQee cov nroj tsuag Arctic muaj apical meristem nyob rau hauv qis / nruab nrab ntawm cov nroj tsuag.
Puas muaj cov ntaub so ntswg meristematic hauv nplooj?
The plate meristem muaj cov txheej txheem sib luag ntawm cov hlwb faib cov tshuaj tiv thaiv kab mob los ua lub luag haujlwm tseem ceeb hauv nplooj loj hlob. Lub marginal meristem, uas yog nyob rau ntawm ntug ntawm nplooj ntawm lub adaxial thiab abaxial nto, pab tsim cov ntaub so ntswg txheej hauv nplooj.
Pom zoo:
Koj yuav pom qhov twg ntau tshaj plaws ntawm cov hlwb tsis sib xws hauv cov nroj tsuag?
Cov qia hlwb yog cov hlwb tsis sib xws nyob hauv cov meristems ntawm cov nroj tsuag . Cov hlwb tsis sib txawv nyob qhov twg hauv cov nroj tsuag? Cov qia hlwb yog innately undifferentiated hlwb nyob rau hauv the meristems ntawm cov nroj tsuag.
Puas cov ntaub so ntswg meristematic tsis muaj?
Meristematic hlwb muaj peev xwm sib faib. Rau lub hom phiaj no, lawv muaj tuab cytoplasm thiab nyias nyias phab ntsa. Vim li no, meristematic hlwb lack vacuole . Puas tsis nyob hauv cov ntaub so ntswg meristematic? Meristematic hlwb feem ntau cuam tshuam nrog kev faib cell.
Vim li cas cov ntaub so ntswg meristematic muaj cov nucleus tseem ceeb?
Meristematic hlwb muaj lub hauv paus tseem ceeb, ntom cytoplasm thiab tsis muaj vacuoles thiab vim tias: cov cells tsis khaws cov khoom noj lossis cov khoom pov tseg. Yog li lawv tsis muaj vacuole. Raws li vacuoles muaj cell sap thiab muab rigidity thiab turgidity rau lub cell .
Puas yog cov ntaub so ntswg adipose suav tias yog cov ntaub so ntswg txuas?
Adipose cov ntaub so ntswg, lossis cov ntaub so rog, cov ntaub so ntswgsuav nrog cov roj ntsha tseem ceeb (adipose hlwb, lossis adipocytes), tshwj xeeb los ua ke thiab muaj cov roj loj loj, hauv cov qauv network ntawm fibers . Puas yog cov ntaub so ntswg adipose txuas?
Puas yog cov hlwv secretory pom hauv cov nroj tsuag?
Cov ntsiab lus enzymatic lossis hormonal ntawm lysosomes, peroxisomes thiab secretory vesicles tau ntim rau hauv cov hlwv hauv daim nyias nyias ntawm lub periphery ntawm Golgi apparatus. Lysosomes: Lysosomes muaj hydrolytic enzymes tsim nyog rau kev zom zaub mov intracellular.
