Video: Ligand gated channels ua dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ligand - Gated ion channels (LICs, LGIC), kuj tseem 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 nug, dab tsi yog txoj haujlwm ntawm ligand gated channels?
Ligand-gated ion channels yog transmembrane protein ntau complexes uas ua ion ntws los ntawm ib tug channel pore nyob rau hauv teb rau kev khi ntawm ib tug neurotransmitter. Lawv txawv ntawm voltage-gated ion channels, uas yog rhiab heev rau daim nyias nyias muaj peev xwm, thiab GPCRs, uas siv ob tug tub txib.
Ib sab saum toj no, cov kab ligand gated nyob qhov twg? Ligand - gated channels , nyob ntawm qhov chaw ntawm kev sib cuag synaptic yog pom Feem ntau ntawm dendritic spines, dendrites thiab somata ntawm paj hlwb, lossis neurons.
Tsuas yog li ntawd, qhov txawv ntawm qhov voltage thiab ligand gated channels yog dab tsi?
Txhua neuron muaj ob hom cov channel nyob rau hauv lawv cov cell membrane. 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.
Dab tsi yog gated channels hauv biology?
Gated ion cov channel yog ua los ntawm ntau yam transmembrane proteins uas tsim lub pore, los yog channel , nyob rau hauv lub cell membrane. Lub sij hawm " rooj vag " hais txog qhov tseeb tias ion channel yog tswj los ntawm "lub rooj vag" uas yuav tsum tau qhib kom tso cai rau cov ions los ntawm.
Pom zoo:
Sociobiology yog dab tsi thiab dab tsi yog qhov kev thuam loj ntawm nws?
Ib feem ntawm sociobiology cuam tshuam nrog kev coj tus cwj pwm tsis zoo feem ntau. Cov neeg thuam tau hais tias daim ntawv thov ntawm sociobiology no yog ib hom kev txiav txim siab caj ces thiab nws ua tsis tau raws li qhov nyuaj ntawm tib neeg tus cwj pwm thiab qhov cuam tshuam ntawm ib puag ncig ntawm tib neeg txoj kev loj hlob
Dab tsi yog qhov txawv ntawm voltage gated channels thiab ligand gated channels?
Voltage gated ion channels qhib nyob rau hauv teb rau voltage (piv txwv li thaum lub cell tau txais depolarized) qhov twg li ligand gated channels qhib nyob rau hauv teb rau ib tug ligand (qee yam tshuaj teeb liab) khi rau lawv. Lub ligand gated channels qhib thiab tso cai rau influx ntawm sodium, uas depolarizes cell
Dab tsi yog qhov sib txawv ntawm cov channel gated?
Muaj peb lub ntsiab ntawm ion channel, i.e., voltage-gated, extracellular ligand-gated, thiab intracellular ligand-gated nrog rau ob pawg ntawm lwm yam ion channels
Vim li cas ethylenediamine yog bidentate ligand?
Bidentate ligands muaj ob lub atoms pub dawb uas tso cai rau lawv los khi rau lub hauv paus hlau atom lossis ion ntawm ob lub ntsiab lus. Qhia hauv qab no yog daim duab ntawm ethylenediamine: cov nitrogen (xiav) atoms ntawm cov npoo txhua tus muaj ob lub electrons dawb uas tuaj yeem siv los txuas rau lub hauv paus hlau atom lossis ion
Dab tsi yog monodentate ligand hauv chemistry?
Monodentate ligand yog ligand uas tsuas muaj ib lub atom uas ua haujlwm ncaj qha mus rau lub hauv paus atom hauv ib qho nyuaj. Piv txwv li, ammonia thiab chloride ion yog monodentate ligands ntawm tooj liab hauv cov complexes [Cu(NH3)6]2+ thiab [CuCl6]2+