Video: Qhov twg yog cov tshuaj hormones zais hauv cov nroj tsuag?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lawv tsim nyob rau hauv qia, buds, thiab cov lus qhia hauv paus. Piv txwv: Indole Acetic Acid (IA). Auxin ib cog tshuaj tsim nyob rau hauv lub qia taub uas txhawb nqa cell elongation. Auxin txav mus rau qhov tsaus ntuj ntawm sab cog , ua rau cov cell nyob ntawd loj tuaj ntau dua li cov xov tooj sib txuas ntawm sab nraub qaum ntawm cog.
Hauv qhov no, dab tsi yog cov tshuaj hormones muaj nyob hauv cov nroj tsuag?
Peb saib ntawm tsib yam loj ntawm tshuaj hormones nyob rau hauv nroj tsuag : auxins, cytokinins, gibberellins, ethylene thiab abscisic acid. Auxins yog tshuaj hormones uas txhawb kev loj hlob thiab yog tsim tawm hauv qhov tsis paub qab hau ntawm nroj tsuag . Ethylene yog tshuaj lom neeg tsim tawm hauv cov txiv hmab txiv ntoo, paj thiab nplooj laus uas txhawb cov txiv hmab txiv ntoo kom siav.
Ib sab saum toj no, cov tshuaj hormones thauj hauv cov nroj tsuag li cas? Hormones thauj nrog cov dej ntws tawm yuav tsum tau thauj mus rau hauv xylem thiab tshem tawm ntawm lub hom phiaj ntawm tes. Tsuas yog qee qhov xwm txheej tau pom tias a cog tshuaj tau muab coj los ua ke nyob rau hauv tib lub cell uas nws lub luag haujlwm xav tau, thiab cov no yuav tsis xav tau kev sib txuas lus thauj mechanisms.
Kuj Paub, muaj pes tsawg cov tshuaj hormones cog?
tsib
Dab tsi yog qhov tseem ceeb tshaj plaws cog cov tshuaj hormones?
Abscisic acid (tseem hu ua ABA) yog ib qho tseem ceeb tshaj plaws tswj kev cog qoob loo. Feem ntau, abscisic acid inhibits kev loj hlob / germination.
Pom zoo:
Dab tsi yog cov ntaub so ntswg hauv cov nroj tsuag?
Lateral meristems yog cov faib cov hlwb hauv kev loj hlob theem ob, thiab tsim cov ntaub so ntswg thib ob. Secondary xylem yog ntoo tiag tiag ntawm tsob ntoo, thiab phloem theem ob muab kev thauj qab zib. Cov vascular cambium yog txheej tuab heev ntawm cov cell nruab nrab ntawm xylem thiab phloem
Hom qog twg yog tsis muaj cov qog thiab zais cov tshuaj hormones?
Cov qog endocrine yog cov qog ua kua ductless ntawm cov kab ke endocrine uas zais lawv cov khoom, cov tshuaj hormones, ncaj qha rau hauv cov ntshav. Cov qog loj ntawm cov kab ke endocrine suav nrog lub caj pas pineal, caj pas pituitary, txiav txiav, zes qe menyuam, qog ntshav, qog ntshav, qog parathyroid, hypothalamus thiab qog adrenal
Puas yog qhov endoplasmic reticulum pom nyob hauv cov nroj tsuag lossis tsiaj txhu?
Lub du endoplasmic reticulum, los yog du ER, yog ib qho organelle pom nyob rau hauv ob qho tib si tsiaj hlwb thiab cov hlwb cog. Organelle yog ib chav nyob hauv ib lub xovtooj uas muaj haujlwm tshwj xeeb. Lub luag haujlwm tseem ceeb ntawm ER du yog ua cov khoom lag luam ntawm tes zoo li cov tshuaj hormones thiab lipid
Lub luag haujlwm ntawm phloem cov ntaub so ntswg nyob rau hauv cov nroj tsuag thauj system yog dab tsi?
Phloem yog cov ntaub so ntswg ua lub luag haujlwm rau kev thauj cov suab thaj los ntawm cov ntaub so ntswg (ex. photosynthetic nplooj hlwb) mus rau hauv cov ntaub so ntswg (ex. non-photosynthetic cag hlwb los yog tsim paj). Lwm cov molecules xws li cov proteins thiab mRNAs kuj tau thauj thoob plaws hauv cov nroj tsuag ntawm phloem
Dab tsi yog qhov sib txawv ntawm cov tshuaj yuav tshuaj thiab cov lus nug ntawm cov tshuaj hauv khw muag tshuaj?
Cov tshuaj yuav yog cov tshuaj uas xav kom kws kho mob sau tseg kom muab faib tawm. Hauv lub txee, cov tshuaj yog cov tshuaj zoo li Advil lossis Tylenol uas koj tsis xav tau kws kho mob sau tseg los yuav. Qhov sib txawv tseem ceeb ntawm ob yog tias koj yuav tsum muaj daim ntawv yuav tshuaj tshuaj yog tias nws yog tshuaj yuav tshuaj