Qhov sib txawv ntawm Intracellular thiab Intercellular Signaling

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Qhov sib txawv ntawm Intracellular thiab Intercellular Signaling
Qhov sib txawv ntawm Intracellular thiab Intercellular Signaling

Video: Qhov sib txawv ntawm Intracellular thiab Intercellular Signaling

Video: Qhov sib txawv ntawm Intracellular thiab Intercellular Signaling
Video: KEV SAWV CAUB FAB thiab KEV SIB TXEEB MEEJ MOM NTAWM HMOOB 2024, Hlis ntuj nqeg
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Qhov sib txawv tseem ceeb ntawm kev taw qhia intracellular thiab intercellular yog qhov kev taw qhia intracellular yog kev sib txuas lus nyob rau hauv lub cell thaum intercellular signaling yog kev sib txuas lus ntawm hlwb.

Cells tso tawm cov cim taw qhia rau lub hom phiaj lub hlwb thiab sib txuas lus nrog ib leeg los ntawm kev taw qhia cov molecules hauv ntau cov kab mob. Lub hom phiaj hlwb muaj cov receptors ntawm lawv lub xov tooj ntawm tes thiab hauv cytoplasm kom tau txais cov cim thiab ua raws li. Tsis tas li ntawd, nyob rau hauv lub cell, kev sib txuas lus tshwm sim ntawm organelles thiab nucleus los ua haujlwm cellular. Yog li ntawd, muaj ob hom kev sib txuas lus ntawm tes ua intracellular signaling los yog kev sib txuas lus thiab intercellular kev sib txuas lus los yog signaling.

Dab tsi yog Intracellular Signaling?

Intracellular signaling yog hais txog kev sib txuas lus ntawm tes uas tshwm sim hauv cell. Receptors nyob rau ntawm lub cell membrane tau txais lub teeb liab thiab hloov mus rau hauv lub teeb liab intracellular. Ces intracellular receptors txuas ntxiv teeb liab kis mus rau lub hom phiaj nyob rau hauv lub cell.

Qhov sib txawv ntawm Intracellular thiab Intercellular Signaling
Qhov sib txawv ntawm Intracellular thiab Intercellular Signaling

Daim duab 01: Intracellular Signaling

Intracellular signaling cascade muaj ntau yam, thiab lawv cov kev hloov kho tshwm sim los ntawm enzymes. Phosphorylation yog kev hloov kho tshuaj lom neeg ntau tshaj plaws uas tshwm sim thaum lub sij hawm intracellular signaling; nws activates enzymes uas yog ib qho tseem ceeb rau cov txheej txheem downstream. Ntxiv mus, phosphorylation ua rau kev hloov pauv hauv lawv cov duab. Hauv phosphorylation, kinase enzyme catalyzes ntxiv ntawm phosphate pawg rau hauv molecules. Tsis tas li ntawd, intracellular signaling siv lwm cov tub txib xws li calcium ion, diacylglycerol, inositol triphosphate thiab cyclic AMP, thiab lwm yam.

Dab tsi yog Intercellular Signaling?

Intercellular signaling yog kev sib txuas lus uas muaj nyob nruab nrab ntawm cov hlwb. Cells xa cov teeb liab mus rau lub hom phiaj ntawm lub hlwb nyob rau hauv daim ntawv ntawm cov tshuaj lom neeg cov teeb liab los yog signaling molecules. Nws tso tawm cov cim qhia txog cov kab mob hu ua ligands rau hauv cov matrix extracellular. Cov kev taw qhia cov molecules nqa cov lus thiab diffuse nyob rau hauv extracellular matrix mus rau cov nyob sib ze cell, uas yog lub hom phiaj cell. Yuav kom tau txais cov teeb liab, lub hom phiaj hlwb muaj receptors uas yog protein molecules. Receptors tam sim no nyob rau ntawm lub xov tooj ntawm tes khi nrog lub extracellular los yog sab nraud ligand thiab sib txuas lus nrog lub xa xov tooj.

Hauv cov tsiaj txhu, cov hlwb sib txuas lus nrog cov hlwb nyob sib ze ntawm qhov sib txawv. Cov paj hlwb xa cov cim los ntawm ib qho neuron mus rau lwm tus los ntawm neurotransmitters. Muaj kev sib tshuam hu ua synapse ntawm ob lub neurons. Neurotransmitters tso tawm los ntawm kev xa cov neuron (presynaptic neuron) taug kev hla lub synapse thiab ncav cuag cov receptors ntawm lub hom phiaj neuron (postsynaptic neuron). Hauv qhov no, cov paj hlwb sib txuas lus nrog ib leeg thiab xa cov cim thoob plaws hauv lub cev.

Qhov tseem ceeb sib txawv - Intracellular vs Intercellular Signaling
Qhov tseem ceeb sib txawv - Intracellular vs Intercellular Signaling

Daim duab 02: Kev xa tawm ntawm Neurons

Tsis tas li ntawd, cov nroj tsuag cov hlwb sib txuas lus nrog cov hlwb nyob sib ze ntawm plasmodesmata. Yuav luag tag nrho cov nroj tsuag muaj plasmodesmata rau kev sib txuas lus ntawm cov hlwb. Yog li ntawd, plasmodesmata pab txhawb kev sib txuas lus hauv cov nroj tsuag.

Dab tsi yog qhov zoo sib xws ntawm Intracellular thiab Intercellular Signaling?

  • Intracellular thiab intercellular signaling yog ob txoj kev sib txuas lus ntawm cov hlwb.
  • Signaling molecules thiab receptors koom rau hauv ob txoj hauv kev.
  • Lawv yog qhov tseem ceeb rau kev ua haujlwm ntawm tes thiab kev sib txuas lus tag nrho hauv cov kab mob ntau lub cev, suav nrog tsiaj thiab nroj tsuag.
  • Tsis tas li, ob qho kev taw qhia ua haujlwm raws li kev tswj hwm txoj cai.

Qhov txawv ntawm Intracellular thiab Intercellular Signaling yog dab tsi?

Intracellular signaling yog kev sib txuas lus uas tshwm sim hauv lub cell. Nyob rau hauv sib piv, intercellular signaling yog kev sib txuas lus uas tshwm sim ntawm lub hlwb. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm intracellular thiab intercellular signaling. Tsis tas li ntawd, intracellular signaling yog ib qho tseem ceeb rau kev sib txawv thiab kev loj hlob ntawm lub cev thiab tseem ceeb heev rau kev ua cov ntaub ntawv sensory. Lub caij no, kev sib txuas lus intracellular tswj tag nrho cov haujlwm uas tshwm sim hauv lub xovtooj ntawm tes, suav nrog cov metabolism hauv nruab nrab, kev faib tawm ntawm tes, morphology, thiab kev hloov pauv. Yog li ntawd, qhov no yog qhov sib txawv ntawm kev ua haujlwm ntawm lub cev thiab lub cev sib txuas.

Qhov sib txawv ntawm Intracellular thiab Intercellular Signaling nyob rau hauv daim ntawv Tabular
Qhov sib txawv ntawm Intracellular thiab Intercellular Signaling nyob rau hauv daim ntawv Tabular

Summary – Intracellular vs Intercellular Signaling

Kev sib txuas lus ntawm tes tuaj yeem yog kev qhia hauv lub cev lossis kev sib txuas lus. Intracellular signaling tshwm sim nyob rau hauv lub cell. Nws yog lub teeb liab saw tshwm sim nyob rau hauv lub cell teb rau extracellular thiab intracellular stimuli. Nyob rau hauv sib piv, intercellular signaling tshwm sim ntawm cov cell. Kev sib txuas lus ntawm cov hlwb muaj qhov tseem ceeb hauv kev sib txawv thiab kev loj hlob ntawm lub cev thiab tseem yog ib qho tseem ceeb rau kev ua cov ntaub ntawv xav tau. Lub caij no, kev sib txuas lus intracellular tswj tag nrho cov haujlwm tshwm sim hauv lub xov tooj ntawm tes, suav nrog cov metabolism hauv nruab nrab, kev faib tawm ntawm tes, kev ua haujlwm morphology thiab kev hloov pauv. Yog li, qhov no qhia txog qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov nruab nrab ntawm lub cev.

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