Cov txheej txheem:
Video: Lub peev xwm loj hlob yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov kev loj hlob . peev xwm yog feem pua ntawm cov noob uas muaj noob thaum lub sijhawm xeem (21 lossis 28 hnub nyob ntawm.
Nyob rau hauv no txoj kev, dab tsi yog feem pua germination?
Taw qhia: Kev cog qoob loo feem pua yog kev kwv yees ntawm kev muaj sia nyob ntawm cov pejxeem ntawm cov noob. Qhov sib npaug los laij germination feem pua yog: GP = noob noob /tag nrho cov noob x 100. Cov kev loj hlob tus nqi muab ib qho kev ntsuas ntawm lub sij hawm kawm ntawm noob germination . Suav tawm 50 cov noob (tsawg dua yog cov noob loj).
Tsis tas li, dab tsi yog kev cog qoob loo hauv cov lus yooj yim? Kev cog qoob loo tshwm sim thaum cov noob lossis noob pib loj tuaj. Nws yog ib lo lus siv nyob rau hauv botany. Thaum ib tug spores los yog noob germinates, nws tsim ib tug tua los yog yub, los yog (nyob rau hauv cov ntaub ntawv ntawm fungi) ib tug hypha. Noob tuaj yeem muaj sia nyob ntev dua li cov kab mob, qee zaum rau ntau pua xyoo.
Ib qho ntxiv, 3 theem ntawm kev cog qoob loo yog dab tsi?
Cov txheej txheem noob germination
- Kauj Ruam 1: Ua kom tsis muaj dej: dej puv cov noob.
- Kauj Ruam 2: Cov dej ua kom muaj cov enzymes uas pib cog tsob ntoo.
- Kauj Ruam 3: Cov noob cog hauv paus kom nkag tau dej hauv av.
- Kauj Ruam 4: Cov noob loj hlob tua uas loj hlob ntawm lub hnub.
- Kauj Ruam 5: Cov tua loj hlob nplooj thiab pib photmorphogenesis.
Cov txheej txheem germination yog dab tsi?
Kev cog qoob loo yog txheej txheem los ntawm cov kab mob loj hlob los ntawm cov noob lossis cov qauv zoo sib xws. Tsis tas li ntawd, kev loj hlob ntawm cov kab mob ntawm cov kab mob, xws li cov spores ntawm hyphae los ntawm cov kab mob fungal, kuj yog. kev loj hlob.
Pom zoo:
Cov tshuaj hormones twg cuam tshuam rau pob txha loj hlob thiab kev loj hlob xaiv txhua yam uas siv?
Hormones That Influence Osteoclasts Hormones That Affect the Skeletal System (Table 6.6) Hormone Role Growth hormone Ua kom ntev ntawm cov pob txha ntev, txhim kho kev ntxhia, thiab txhim kho cov pob txha ceev Thyroxine txhawb kev loj hlob ntawm cov pob txha thiab txhawb kev sib txuas ntawm cov pob txha matrix
Lub ntsws muaj peev xwm hauv mL yog dab tsi?
Lub ntsws muaj peev xwm Nws yog qhov siab tshaj plaws ntawm cov pa uas lub ntsws tuaj yeem ua kom haum lossis tag nrho cov ntim ntim lossis ntim ntawm cov pa hauv ntsws tom qab kev tshoov siab siab tshaj plaws. Tus nqi ib txwm yog li 6,000mL (4-6 L)
Puas muaj peev xwm loj hlob tom qab 21?
Qee qhov kev mob nkeeg tuaj yeem ua rau tus neeg laus qhov siab nce ntxiv. Txawm hais tias feem ntau cov neeg laus yuav tsis loj hlob 18 txog 20 xyoo, muaj kev zam rau txoj cai no. Yog tias daim ntawv nthuav dav tseem qhib hnub nyoog 18 txog 20 xyoo, uas tsis tshua muaj, qhov siab tuaj yeem txuas ntxiv mus. Qhov thib ob, somesufferfromgigantism
Yam dab tsi cuam tshuam rau lub ntsws thiab lub peev xwm?
Lub peev xwm ua pa (pulmonary peev) yog qhov sib npaug ntawm ob lossis ntau qhov ntim. Cov yam xws li hnub nyoog, poj niam txiv neej, kev tsim lub cev, thiab kev kho lub cev muaj feem cuam tshuam rau lub ntsws thiab lub peev xwm. Cov ntsws feem ntau ncav cuag lawv qhov siab tshaj plaws hauv cov neeg laus thaum ntxov thiab poob qis nrog hnub nyoog tom qab ntawd
Dab tsi yog cov xwm txheej uas cov hlwb mus dhau thaum lawv loj hlob thiab sib faib?
Cov xov tooj ntawm tes uas tau loj hlob thiab faib mus los ntawm cov xwm txheej rov ua dua hu ua kev faib lub xov tooj ntawm tes (lossis lub voj voog ntawm tes). Thaum lub sij hawm thawj theem (G1), lub cell loj hlob thiab npaj rau DNA replication, uas tshwm sim nyob rau hauv lub tom ntej S theem