Video: Dab tsi yog extracellular signal molecules?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Extracellular signaling molecules yog cues, xws li kev loj hlob yam, cov tshuaj hormones, cytokines, extracellular matrix Cheebtsam thiab neurotransmitters, tsim los xa cov ntaub ntawv tshwj xeeb rau cov hlwb.
Ib yam li ntawd, tib neeg nug, dab tsi yog lub teeb liab extracellular?
Tseem ceeb dua hauv cov nroj tsuag thiab tsiaj txhu extracellular signaling molecules uas ua haujlwm nyob rau hauv lub cev los tswj cov txheej txheem metabolic hauv cov hlwb, kev loj hlob ntawm cov ntaub so ntswg, kev sib txuas thiab tso tawm ntawm cov protein, thiab muaj pes tsawg leeg ntawm intracellular thiab extracellular kua dej.
Qhov thib ob, dab tsi yog extracellular molecules? Extracellular molecules = molecules uas raug cais tawm ntawm / sab nraud ntawm tes. Cov molecules yog synthesized los ntawm cell ntawm. exocytosis (ib qho kev thauj mus los uas lub cell tshem tawm cov proteins / molecules siv zog).
Kuj paub, dab tsi yog cov teeb liab molecules?
Teeb liab molecules yog cov molecules uas yog lub luag haujlwm rau kev xa cov ntaub ntawv ntawm cov hlwb hauv koj lub cev. Qhov loj, zoo li, thiab kev ua haujlwm ntawm ntau hom signaling molecules tuaj yeem sib txawv heev.
Dab tsi yog 4 hom kev taw qhia ntawm tes?
Muaj plaub yam yooj yim ntawm cov tshuaj teeb liab pom muaj nyob rau hauv multicellular kab mob: paracrine teeb liab , autocrine ua teeb liab , kab mob endocrine teeb liab , thiab teeb liab los ntawm kev sib cuag ncaj qha.
Pom zoo:
Cov kua dej extracellular hu ua dab tsi?
Extracellular fluid (ECF) qhia txog tag nrho cov kua hauv lub cev sab nraum lub hlwb ntawm txhua yam kab mob hauv lub cev. Extracellular kua yog nyob rau hauv ib puag ncig ntawm tag nrho cov multicellular tsiaj, thiab nyob rau hauv cov tsiaj nrog ib tug ntshav circulatory system, ib feem ntawm cov kua no yog ntshav plasma
Puas yog dej molecules nyiam rau lwm cov polar molecules?
Raws li qhov tshwm sim ntawm dej polarity, txhua tus dej molecule attracts lwm cov dej molecules vim yog cov nqi sib txawv ntawm lawv, tsim hydrogen bonds. Dej kuj nyiam, lossis nyiam, lwm cov polar molecules thiab ions, suav nrog ntau cov biomolecules, xws li qab zib, nucleic acids, thiab qee cov amino acids
Extracellular matrix ua dab tsi?
Vim nws muaj ntau yam xwm txheej thiab muaj pes tsawg leeg, ECM tuaj yeem ua haujlwm ntau yam, xws li muab kev txhawb nqa, cais cov ntaub so ntswg los ntawm ib leeg, thiab tswj kev sib txuas lus intercellular. Lub extracellular matrix tswj ib tug cell tus cwj pwm dynamic
Dab tsi yog qhov extracellular matrix ntawm cov ntshav?
Lub extracellular matrix, hu ua plasma, ua rau cov ntshav tshwj xeeb ntawm cov ntaub so ntswg vim nws yog kua. Cov kua dej no, uas feem ntau yog dej, perpetual suspends tsim cov ntsiab lus thiab ua rau lawv mus thoob plaws hauv lub cev nyob rau hauv lub plawv system
Dab tsi yog cov ions nyob rau hauv siab tshaj plaws concentration nyob rau hauv lub extracellular kua?
Cov tshuaj no nyob rau hauv cov kua dej extracellular thiab intracellular. Nyob rau hauv cov kua dej extracellular, cov cation loj yog sodium thiab cov anion loj yog chloride. Qhov loj cation nyob rau hauv cov kua dej intracellular yog poov tshuaj. Cov electrolytes no ua lub luag haujlwm tseem ceeb hauv kev tswj hwm homeostasis