Video: Qhov chaw ua haujlwm yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv biology, lub qhov chaw nquag yog thaj tsam ntawm ib qho enzyme uas substrate molecules khi thiab raug tshuaj lom neeg cov tshuaj tiv thaiv. Cov qhov chaw nquag muaj cov residues uas tsim ib ntus daim ntawv cog lus nrog lub substrate (binding qhov chaw ) thiab residues uas catalyze cov tshuaj tiv thaiv ntawm cov substrate ( catalytic site ).
Kuj tseem paub yog, lub luag haujlwm ntawm qhov chaw ua haujlwm hauv enzyme yog dab tsi?
Ib lub substrate yog cov khoom los yog cov molecule uas ib enzyme ua haujlwm . Cov hnab ris no muaj cov qhov chaw nquag , uas yog thaj tsam ntawm ib enzyme qhov twg lub substrate khi thiab cov tshuaj tiv thaiv yuav tshwm sim. Hauv qhov chaw nquag , cov amino acids enzyme protein yuav khi rau lub substrate.
Qhov thib ob, koj yuav nrhiav tau qhov chaw nquag ntawm cov protein li cas? Saib cov no cov chaw nquag , zais tag nrho cov khoom thauj mus rau hauv PyMol los ntawm kev siv cov lus txib "hide". Sawv cev tag nrho protein ntau nrog tus sawv cev saum npoo, teeb tsa nrog 50% pob tshab. Xaiv qhov khoom protein ntau molecule, qhia? nto puv tag nrho protein ntau molecule rau saum npoo sawv cev.
Tsis tas li ntawd, koj ua li cas txiav txim siab qhov chaw nquag ntawm ib qho enzyme?
Ib feem ntawm enzyme qhov twg substrate khi yog hu ua qhov chaw nquag (vim qhov ntawd yog qhov uas catalytic "ua haujlwm" tshwm sim). Ib lub substrate nkag mus rau hauv qhov chaw nquag ntawm enzyme.
Lub luag haujlwm ntawm enzyme yog dab tsi?
Enzymes yog cov roj ntsha molecules (feem ntau yog cov proteins) uas ua rau kom nce tus nqi ntawm txhua yam tshuaj lom neeg uas tshwm sim hauv cov hlwb. Lawv yog ib qho tseem ceeb rau lub neej thiab ua hauj lwm ntau yam tseem ceeb muaj nuj nqi nyob rau hauv lub cev, xws li pab digestion thiab metabolism.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov pom tseeb qhov loj thiab qhov ntsuas qhov ntsuas qhov tseeb?
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Dab tsi yog qhov txawv ntawm qhov chaw thiab qhov chaw?
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Dab tsi yog qhov kev hloov pauv ntawm cov khoom uas txav ntawm qhov chaw mus rau qhov chaw ntawm - 12 m?
Kev piav qhia: Qhov kev txav ntawm ib qho khoom txav ntawm qhov chaw mus rau qhov chaw ntawm − 12 m yog 12 meters. Qhov kev ncua deb ntawm lub hauv paus chiv keeb mus rau qhov siab tshaj plaws txoj hauj lwm yog hu ua displacement ntawm ib yam khoom. Qhov siab tshaj plaws kev hloov pauv ntawm cov khoom nyob rau hauv ib nthwv dej yog hu ua crest thiab qhov tsawg kawg nkaus hloov pauv yog hu ua trough
Lub organelle twg ua haujlwm raws li qhov chaw xa ntawv ntawm lub xov tooj ntawm tes txheeb cov proteins thiab xa lawv mus rau lawv qhov chaw xav tau sab hauv lossis sab nraud ntawm tes?
Golgi Hais txog qhov no, dab tsi organelle yog lub luag haujlwm rau kev thauj mus los? endoplasmic reticulum (ER Qhov thib ob, cov proteins txav mus los ntawm lub cell li cas? Cov proteins txav mus los endomembrane system thiab raug xa tawm los ntawm lub ntsej muag trans ntawm Golgi apparatus nyob rau hauv thauj vesicles uas txav mus los cytoplasm thiab tom qab ntawd fuse nrog plasma membrane tso tawm protein ntau mus rau sab nraum lub cell .
Dab tsi yog qhov zeros ntawm kev ua haujlwm Dab tsi yog qhov sib txawv?
Tus naj npawb ntawm lub sij hawm ib qho tseem ceeb tshwm sim nyob rau hauv daim ntawv factored ntawm qhov sib npaug ntawm ib tug polynomial yog hu ua multiplicity. Qhov xoom cuam tshuam nrog qhov xwm txheej no, x = 2, muaj ntau qhov sib npaug 2 vim tias qhov xwm txheej (x− 2) tshwm sim ob zaug. X-intercept x=− 1 yog qhov rov qab daws ntawm qhov xwm txheej (x + 1) 3 = 0 (x + 1) 3 = 0