Cov txheej txheem:

Xauv thiab qhov tseem ceeb txoj kev xav hauv kev puas siab puas ntsws yog dab tsi?
Xauv thiab qhov tseem ceeb txoj kev xav hauv kev puas siab puas ntsws yog dab tsi?

Video: Xauv thiab qhov tseem ceeb txoj kev xav hauv kev puas siab puas ntsws yog dab tsi?

Video: Xauv thiab qhov tseem ceeb txoj kev xav hauv kev puas siab puas ntsws yog dab tsi?
Video: Maiv Xyooj ~ "Lub Kua Muag Tu Moo" with Lyrics (Official Music Video) 2024, Cuaj hlis
Anonim

Xauv thiab qhov tseem ceeb qauv ntawm kev sib kis synaptic. Cov xauv thiab qhov tseem ceeb qauv ntawm kev sib kis synaptic ua rau pom tias cov neurotransmitters tsuas yog cuam tshuam rau postsynaptic receptor qhov chaw uas muaj lub ntsej muag zoo rau qhov tshwj xeeb molecule, hauv tib txoj kev uas tus yuam sij yuav tsum muaj cov duab kom haum xauv.

Tsis tas li ntawd, qhov ntsuas phoo thiab qhov tseem ceeb yog dab tsi?

Nyob rau hauv 1894, German chemist Emil Fischer tau thov cov xauv thiab tseem ceeb txoj kev xav , uas tau hais tias cov enzymes muaj cov duab tshwj xeeb uas cuam tshuam ncaj qha rau cov duab ntawm lub substrate. Yeej, substrates haum rau hauv enzyme txoj kev a tus yuam sij fits ib xauv.

Tsis tas li ntawd, qhov ntsuas phoo thiab qhov tseem ceeb receptors yog dab tsi? Kev qhib ntawm a tus neeg txais kev pab yog piav raws li a xauv-thiab-tus yuam sij cov txheej txheem raws li tsuas yog qee yam qauv, feem ntau yog xa cov neurotransmitter, tuaj yeem ua rau muaj txiaj ntsig (Daim duab 5). Qhov tshwj xeeb "haum" ntawm cov molecule mus rau tus neeg txais kev pab tej zaum yuav tshwm sim nyob qhov twg.

Yog li ntawd, yog vim li cas lub xauv thiab tus yuam sij yuam kev?

Cov xauv-thiab-tus qauv tsis yog tsis ncaj ncees lawm raws nraim, tsuas yog oversimplified. Thawj qauv npaj siab tias ib qho enzyme muaj nyob rau hauv ib qho kev sib haum xeeb, qhov chaw ua haujlwm yog ua tiav rau lub substrate. Cov enzyme yuav tsum qhia pom kev hloov pauv tau rau catalyze cov tshuaj tiv thaiv no.

Dab tsi yog qhov txawv ntawm cov xauv?

Txawm hais tias muaj ntau hom xauv, plaub feem ntau yog padlocks, deadbolts, knoblocks, thiab levers

  • Padlocks.
  • Deadbolts.
  • Qhov Rooj Xauv.
  • Qib Kov Xauv.
  • Cam Xauv.
  • Rim / Mortise Locks.
  • Euro Profile Lub tog raj kheej.
  • Phab ntsa Mounted Locks.

Pom zoo: