Video: Kev sau ntawv xov tooj yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sau ntawv ntawm Cells thiab lawv qhov chaw. Txhua yam muaj sia muaj hlwb , thiab tseem lawv tsis pom qhov muag liab qab. Cells yog cov qauv tsim thiab kev ua haujlwm ntawm lub neej. Cells yog tsim los ntawm ntau qhov sib txawv uas tso cai rau lawv ua haujlwm zoo. Tag nrho hlwb raug cais tawm ntawm lawv ib puag ncig los ntawm ib cell daim nyias nyias
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog cell?
Cov cell (los ntawm Latin cella, lub ntsiab lus "chav me") yog lub hauv paus structural, functional, thiab biological unit ntawm tag nrho cov paub kab mob. A cell yog qhov tsawg tshaj plaws ntawm lub neej. Cells muaj cytoplasm nyob rau hauv ib daim nyias nyias, uas muaj ntau yam biomolecules xws li cov proteins thiab nucleic acids.
Ib yam li ntawd, cov xov tooj sib txawv yog dab tsi? Muaj ntau pua hom hlwb, tab sis cov hauv qab no yog 11 feem ntau.
- Stem Cells. Pluripotent qia cell.
- Cov pob txha. Coloured scanning electron micrograph (SEM) ntawm khov-fractured osteocyte (ntsuab) ncig ntawm pob txha (grey).
- Cov Ntshav.
- Cov leeg nqaij.
- Fat Cells.
- Cov tawv nqaij.
- Nerve Cells.
- Endothelial Cells.
Ib yam li ntawd, cov haujlwm ntawm lub cell yog dab tsi?
Cells muab rau lub ntsiab muaj nuj nqi . Lawv muab cov qauv thiab kev txhawb nqa, pab txhawb kev loj hlob los ntawm mitosis, tso cai rau kev thauj mus los tsis zoo thiab nquag, tsim lub zog, tsim cov tshuaj tiv thaiv metabolic thiab pab hauv kev yug me nyuam.
Vim li cas cov hlwb tseem ceeb rau lub neej?
Cells yog cov qauv tsim ntawm txhua yam muaj sia nyob. Cells muab cov qauv rau lub cev, nqa cov khoom noj los ntawm cov zaub mov thiab nqa tawm tseem ceeb muaj nuj nqi. Cells pab pawg ua ke los tsim cov ntaub so ntswg?, uas nyob rau hauv lem pab pawg neeg ua ke rau hauv lub cev?, xws li lub plawv thiab lub hlwb.
Pom zoo:
Dab tsi yog lwm lub npe rau kev sib tham xov tooj cua?
Xov tooj cua sib tham. Los ntawm Wikipedia, dawb encyclopedia. Radiometric dating, radioactive dating los yog radioisotope dating yog cov txheej txheem uas siv rau hnub tim cov ntaub ntawv xws li pob zeb los yog cov pa roj carbon monoxide, nyob rau hauv uas ib tug kab mob radioactive impurities tau xaiv incorporated thaum lawv tsim
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Dab tsi cuam tshuam rau kev tshem cov choj ntsev muaj rau kev ua haujlwm ntawm txhua lub xov tooj ntawm tes electrochemical?
Yog tsis muaj ntsev choj, cov tshuaj nyob rau hauv lub anode compartment yuav ua tau zoo them thiab cov tshuaj nyob rau hauv lub cathode compartment yuav ua tsis zoo nqi, vim hais tias ntawm tus nqi imbalance, lub electrode cov tshuaj tiv thaiv yuav sai sai los mus rau ib tug nres, yog li ntawd nws yuav pab kom tswj tau qhov khiav. los ntawm electrons
Yuav ua li cas cov khoom siv caj ces hauv txhua lub xov tooj tshiab tsim los ntawm kev faib tawm ntawm tes sib piv nrog cov khoom siv caj ces hauv lub xov tooj qub?
Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus
Dab tsi ntawm daim ntawv teev sijhawm yog xov tooj cua?
Muaj ob kab nyob rau hauv lub sij hawm lub sij hawm: lub lanthanide thiab actinide series. Lub lanthanide series tuaj yeem pom nyob rau hauv lub ntiaj teb. Tsuas yog ib lub ntsiab lus hauv koob yog xov tooj cua