2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob rau hauv cov ntaub ntawv ntawm dormant spores nyob rau hauv eukaryotes, sporogenesis feem ntau tshwm sim li a tshwm sim ntawm fertilization los yog karyogamy tsim ib tug diploid spore sib npaug rau zygote. Yog li, zygospores yog qhov tshwm sim ntawm kev sib deev. Kev yug me nyuam ntawm spores cuam tshuam nrog kev sib kis ntawm cov spores los ntawm dej lossis cua.
Dab tsi ua rau sporogenesis tshwm sim hauv cov kab mob sib kis?
Sporulation yog cov lus teb hnyav ua los ntawm qee cov kab mob, feem ntau Firmicutes, teb rau kev ntxhov siab heev. Thaum lub sij hawm sporulation, lub cell loj hlob (tseem hu ua ib tug vegetative cell) yuav forego ib txwm cellular faib los ua ib tug endospore.
Lub hom phiaj tseem ceeb ntawm sporogenesis yog dab tsi?
Sporogenesis yog ib qho hloov kho uas tso cai rau cov hlwb kom muaj sia nyob hauv cov xwm txheej hnyav xws li hluav taws xob, qhov kub thiab txias, thiab tshuaj lom neeg.
Ntxhais ua rau sporulation yog dab tsi?
Qhov pib ntawm sporulation hauv Bacillus subtilis yog tshwm sim los ntawm a tsis muaj cov as-ham thiab los ntawm cov cell ceev(2, 15). Qhov kev txiav txim siab rau sporulate yog nruj nruj, vim tias cov txheej txheem siv zog siv zog ua haujlwm kawg rau cov hlwb tshaib plab.
Spore formation tshwm sim li cas?
Hauv cov nroj tsuag, spores feem ntau yog haploid thiab unicellular thiab yog tsim los ntawm meiosis hauv sporangium ntawm diploid sporophyte. Nyob rau hauv cov xwm txheej zoo, spore tuaj yeem loj hlob mus rau hauv ib qho tshiabkab mob siv mitotic division, tsim ib tug multicellular gametophyte, uas nws thiaj li mus rau tsim gametes.
Pom zoo:
Puas yog rov tshwm sim dua lossis rov tshwm sim dua?
Reoccur thiab recur yog verbs uas qhia ib lo lus hauv paus. Thaum lawv nyob ze heev ntawm lub ntsiab lus, lawv tsis zoo ib yam. Tej yam uas yog rov tshwm sim dua thiab dhau mus, tej zaum nyob rau ib ntus. Hauv qhov sib piv, ib yam dab tsi uas rov tshwm sim tsuas yog tshwm sim dua tab sis tsis tas yuav rov ua dua.
Rau qhov tshwm sim tshwm sim?
Cov tshuaj tiv thaiv tus kheej yogtawm tsam uas nyiam tsim cov khoom ntawm cov xwm txheej uas tshwm sim. … Qhov kev sib xyaw ua ke ntawm kev txo qis ntawm lub zog thiab qhov nce hauv entropy txhais tau hais tias cov tshuaj tiv thaiv combustion tshwm sim tsis tu ncua.
Thaum twg pfizer tshwm sim tshwm sim?
Qee yam tshwm sim tshwm sim txoj cai tom qab koj txhaj tshuaj, zoo li mob me me hauv koj txhais caj npab. Lwm tus yuav siv sij hawm ntau teev los txhim kho. Nco ntsoov tias nrog ob koob tshuaj tiv thaiv zoo li Pfizer-BioNTech thiab Moderna, koj tuaj yeem pom muaj kev phiv ntau dua tom qab txhaj tshuaj thib ob.
Yuav tshwm sim lossis tshwm sim?
Peb hom tshwm sim yog arise, sawv, arisen. Nws yog siv hauv cov ntsiab lus tseem ceeb: Ib lub sijhawm tshwm sim thiab nws txiav txim siab los ua txoj haujlwm hauv Brussels. Ib qho teeb meem tshwm sim nrog kuv daim ntawv hla tebchaws. Thaum siv tshwm sim lossis tshwm sim?
Yuav ua li cas txiav txim siab seb qhov kev tshwm sim yog tshwm sim los yog tsis ua raws li txoj cai?
Kev sib xyaw ua lej ntawm kev hloov pauv enthalpy thiab hloov pauv hloov pauv tso cai rau kev hloov pauv ntawm lub zog dawb los suav. A tawm tsam nrog tus nqi tsis zoo rau ΔG tso tawm lub zog dawb thiab yog li nws tus kheej. Cov tshuaj tiv thaiv nrog qhov zoo ΔG yog tsis ua raws li kev xav thiab yuav tsis nyiam cov khoom.
