Dab tsi yog qhov txawv ntawm voltage gated channels thiab ligand gated channels?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Voltage gated ion channels qhib nyob rau hauv teb rau hluav taws xob (piv txwv li thaum lub cell tau depolarized) qhov twg li ligand gated channels qhib nyob rau hauv teb rau a ligand (qee yam teeb liab) khi rau lawv. Cov ligand gated channels qhib thiab tso cai rau kev nkag mus ntawm sodium, uas depolarizes cell.

Ntxiv mus, dab tsi yog qhov txawv ntawm voltage gated channels thiab chemically gated channels?

1. Voltage gated channels - qhib thiab kaw hauv kev teb rau cov kev hloov pauv hauv voltage los yog daim nyias nyias muaj peev xwm; koom nrog tsim kom muaj peev xwm ua tau. 1. Chemically gated channels - qhib thiab kaw hauv cov lus teb rau cov tshuaj, xws li neurotransmitters (ex.

Tom qab, lo lus nug yog, ligand gated channel ua dab tsi? Ligand - Gated ion channels (LICs, LGIC), kuj feem ntau hu ua ionotropic receptors, yog ib pawg ntawm transmembrane ion - channel cov proteins uas qhib kom tso cai ions xws li Na⁺, K⁺, Ca²⁺, thiab/los yog Cl⁻ kom dhau los ntawm daim nyias nyias nyob rau hauv cov lus teb rau kev khi ntawm ib tug chemical messenger (i.e. a ligand ), as a

Kuj tseem paub, nws txhais li cas yog tias channel raug kaw?

gated channel . Ib ion channel nyob rau hauv ib lub cell membrane uas qhib los yog kaw nyob rau hauv lub teb rau ib tug stimulus xws li ib tug neurotransmitter los yog hloov nyob rau hauv siab, voltage, los yog lub teeb.

Dab tsi yog qhov voltage gated membrane channels?

Qhov hluav taws xob - rooj vag ion cov channel yog ib chav kawm ntawm transmembrane proteins uas tsim ion cov channel uas yog qhib los ntawm kev hloov hauv hluav taws xob daim nyias nyias muaj peev xwm nyob ze ntawm channel . Cov daim nyias nyias muaj peev xwm hloov cov conformation ntawm lub channel proteins, tswj lawv qhib thiab kaw.