Video: Qib 6 ntawm tes yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dab tsi yog Cells ? Txhua yam muaj sia muaj hlwb , lub hauv paus unit ntawm lub cev. Prokaryotic hlwb - tsis muaj cov nucleus lossis lwm cov kab mob sib txuas ua ke. Eukaryotic hlwb - muaj ib tug nucleus thiab lwm yam membrane-bound organelles.
Ntxiv mus, dab tsi yog cell rau cov me nyuam?
Txhua yam kabmob, lossis cov khoom muaj sia, yog tsim los ntawm cov qauv hu ua hlwb . Cov cell yog chav tsev me tshaj plaws nrog cov yam ntxwv ntawm lub neej. Qee cov kab mob me me, xws li cov kab mob thiab cov poov xab, tsuas yog ib qho xwb cell . Cov nroj tsuag loj thiab tsiaj muaj ntau ntau billions hlwb.
Qhov thib ob, lub cell yog dab tsi? 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.
Tom qab ntawd, dab tsi yog cell rau dummies?
Cells yog cov kua dej nyob ib puag ncig cell daim nyias nyias. Nyob rau hauv cov kua float tshuaj thiab organelles. Lub cev muaj cov khoom uas me dua li ib cell , mas cov cell yog qhov tsawg tshaj plaws ntawm cov kabmob uas khaws cov yam ntxwv ntawm tag nrho cov kabmob.
Dab tsi yog qhov chaw ntawm lub cell thiab lawv ua dab tsi?
- Ib feem ntawm Cell. Txhua lub hlwb muaj, ntawm qhov tsawg kawg nkaus, ib lub cell membrane, cov khoom siv caj ces thiab cytoplasm, tseem hu ua cytosol.
- Cell Membrane.
- Lub Cytoplasm.
- Lub Nucleus.
- Mitochondria.
- Chloroplasts.
- Ribosomes.
- Golgi Lub Cev thiab Lwm Cov Organelles.
Pom zoo:
Lub luag haujlwm ntawm CDK yog dab tsi hauv lub cev ua haujlwm ntawm tes tshwj xeeb hauv lub voj voog ntawm tes?
Los ntawm phosphorylation, Cdks teeb liab lub xov tooj ntawm tes uas nws tau npaj kom dhau mus rau theem tom ntej ntawm lub voj voog ntawm tes. Raws li lawv lub npe qhia, Cyclin-Dependent Protein Kinases yog nyob ntawm cyclins, lwm chav kawm ntawm kev tswj hwm cov protein. Cyclins khi rau Cdks, ua kom cov Cdks rau phosphorylate lwm cov molecules
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi ntawm lub xov tooj ntawm tes ua raws li qhov chaw tswj kev ua haujlwm ntawm tes?
Lub nucleus muaj cov ntaub ntawv genetic information (DNA) onspecial strands hu ua chromosomes. Function - Lub nucleus yog 'tswj chaw' ntawm lub xovtooj ntawm tes, rau cellmetabolism thiab kev yug me nyuam. Cov kab mob hauv qab no pom muaj nyob rau hauv cov nroj tsuag thiab tsiaj txhu
Qib kev ntsuas rau qib kev zoo siab yog dab tsi?
kev cai Hais txog qhov no, qhov ntsuas kev zoo siab yog dab tsi? Yooj yim muab tso, kev noj qab nyob zoo yog txhais raws li koj qhov kev ntsuam xyuas ntawm a) koj tus kheej lub neej, thiab b) koj lub siab xav thiab kev xav-li no daim ntawv lo "
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua