Koj puas tuaj yeem kos lossis kos npe rau daim duab Angiosperm Organs koj tus kheej? Qib 7 kawm cov ncauj lus no hauv chav kawm botany. Yog tias txoj haujlwm no ua rau koj nyuaj, thov mus saib peb tsab xov xwm.
Cov nroj tsuag twg hu ua angiosperms?
pawg txheej txheem no tuav txoj haujlwm tseem ceeb hauv cov txheej txheem ntawm lub ntiaj teb organic. Nyob rau theem tam sim no, nws muaj ntau dua 250 hom. Cov cim qhia ntawm lub tuam tsev Angiosperms yog muaj paj thiab txiv hmab txiv ntoo. Cov noob muaj cov khoom noj khoom haus thiab tsim nyob rau hauv lub zes qe menyuam ntawm pistil. Qhov no muab kev tiv thaiv txhim khu kev qha tiv thaiv qhov tsis zoo ntawm ib puag ncig. Cov ntaub ntawv lub neej ntawm angiosperms, los yog paj ntoo, tuaj yeem yog tshuaj ntsuab, tsob ntoo, lossis ntoo.
Cov kab mob ntawm Angiosperms: Daim duab
Cia peb pib nrog lub ntsiab txhais ntawm lub tswvyim. Lub cev yog ib feem ntawm cov nroj tsuag uas nyob hauv ib txoj haujlwm, muaj cov qauv zoo sib xws nrog cov haujlwm uas nws ua. Lawv tuaj yeem raug cais raws qhov chaw. Xws li daim duab ntawm lub cev ntawm angiosperms tuaj yeem sawv cev raws li hauv qab no:
- Nkauj ruam yog lub hauv paus.
- Lub dav hlau yog qhov tua, cov qauv uas yog qia, nplooj, buds thiab paj.
Kev faib khoom nruab nrog
Kuj tseem muaj cov kab mob vegetative thiab generative ntawm angiosperms. Nws tsis tuaj yeem paub qhov txawv ntawm lawv ntawm daim duab lossis duab, vim tias qhov kev faib tawm no ua haujlwm zoo. Cov kab mob vegetative muab kev loj hlob, ntxhia zaub mov, photosynthesis. Cov no yog cov hauv paus, qia thiab nplooj. Lawv txoj haujlwm tseem yog kev yug me nyuam. Thaum lub sijhawm txheej txheem no, cov kab mob tshiab tsim los ntawm ntau lub cev ntawm leej niam.
Cov kab mob generative muab kev sib deev. Cov pab pawg no suav nrog paj, txiv hmab txiv ntoo thiab noob. Xav txog cov qauv ntawm txhua lub cev kom ntxaws ntxiv.
Ntau lub cev
Pab pawg no ntawm cov kabmob ntawm cov kabmob angiosperms, cov txheej txheem thiab cov qauv uas peb xav txog hauv peb tsab xov xwm, ua kom muaj kev vam meej ntawm cov kabmob. Lub hauv paus absorbs dej los ntawm substrate nrog ib tug daws ntawm mineral ntsev, kho cov nroj tsuag nyob rau hauv cov av, thiab accumulates as-ham.
Lub qia, uas yog qhov axial ntawm kev tua, txiav txim siab qhov chaw nyob. Lub cev no yog lub hauv paus ntawm lub dav hlau, nws yog ib hom "kev thauj mus los" ntawm cov hauv paus hniav thiab nplooj. Cov tom kawg yog lateral honour ntawm txoj kev khiav. Nyob rau hauv nplooj, ob txheej txheem tseem ceeb yog nqa tawm - photosynthesis (kev tsim cov organic tshuaj los ntawmntxhia vim lub zog ntawm hnub ci hluav taws xob) thiab transpiration (evaporation ntawm dej).
Kev tsim tawm tshiab
Ntawm cov kabmob ntawm angiosperms, cov txheej txheem uas tau nthuav tawm hauv qab no, ib qho chaw tseem ceeb yog nyob ntawm lub paj. Qhov no yog kev hloov kho tua uas ua rau kev sib deev. Nws qhov chaw tseem ceeb yog cov pistil thiab stamens, uas muaj cov kab mob sib deev - gametes. Cov txheej txheem ntawm lawv fusion, los yog fertilization, yog ib txwm ua ntej los ntawm pollination. Qhov no yog kev hloov ntawm txiv neej gametes los ntawm anther ntawm stamens mus rau stigma ntawm pistil. Kev sib xyaw ntawm cov kab mob tshwm sim nyob rau hauv nws qis qis - lub zes qe menyuam.
Angiosperms yog tus cwj pwm los ntawm cov txheej txheem ntawm ob lub fertilization. Dab tsi yog qhov tseem ceeb ntawm txoj kev no? Nyob rau hauv lub zes qe menyuam ntawm pistil muaj ob lub hlwb: lub qe thiab lub hauv paus germinal. Txhua tus ntawm lawv fuses nrog txiv neej gamete. Lawv qhov tshwm sim yog tsim ntawm lub embryo ncig los ntawm cov khoom noj khoom haus (endosperm). Ua ke, cov qauv no tsim ib lub noob. Sab nraud, nws yog npog nrog tev uas tiv thaiv lub embryo los ntawm qhov kub thiab txias thiab kev puas tsuaj rau txhua yam.
Saib ze ntawm daim duab kab mob ntawm Angiosperms. Cov qauv twg peb tseem tsis tau muaj npe? Lawm, qhov no yog cov txiv hmab txiv ntoo. Lub cev no yog tsim los ntawm kev loj hlob ntawm paj. Nyob rau hauv lem, nws muaj cov noob thiab pericarp, uas yuav muaj kua los yog qhuav. Kua, achene, caryopsis, txiv hmab txiv ntoo, taub dag, lub thawv, drupe, thiab lwm yam. Muaj ntau hom txiv hmab txiv ntoo, tab sis lawv koom nrog lawv cov dej num. Cov no suav nrog kev txhim kho, kev tiv thaiv thiabSeed distribution.
Ntuj txiaj ntsim
Peb tau tshuaj xyuas cov yam ntxwv ntawm cov qauv thiab qhov chaw ntawm cov kabmob ntawm cov kabmob angiosperms. Lub tswv yim ntawm chav ua haujlwm gymnosperm yuav zoo sib txawv. Muaj tseeb koj twb twv tias yuav tsis muaj paj rau nws, thiab yog li ntawd tsis muaj txiv hmab txiv ntoo. Nco ntsoov dab tsi spruce lossis ntoo thuv zoo li. Lawv cov noob loj hlob qhib rau ntawm cov nplai ntawm cones thiab tsis muaj kev tiv thaiv los ntawm dab tsi. Thaum siav, lawv nchuav tawm mus rau lub substrate thiab germinate tsuas yog nyob rau hauv tej yam kev mob. Qhov no yog qhov txaus ntawm cov cua sov thiab lub teeb. Thiab lawv tsis yog ib txwm muaj. Angiosperms tsis ntsib teeb meem zoo li no. Cov xwm txheej zoo yog tsim nyob rau hauv lub zes qe menyuam rau kev loj hlob ntawm cov noob, thiab cov txiv hmab txiv ntoo muab sov, ntxiv noo noo thiab khoom noj khoom haus.
Peb cia siab tias tam sim no cov tub ntxhais kawm qib 7 yuav tuaj yeem tsis tsuas yog kos npe rau Angiosperm Organs scheme, tab sis kuj kos rau ntawm lawv tus kheej.
