Cov txheej txheem:
- Yuav ua li cas thaum lub sijhawm Acrosomal tshuaj tiv thaiv?
- Acrosome cov tshuaj tiv thaiv hauv fertilization yog dab tsi?
- Dab tsi yog lub xov tooj loj tshaj plaws koom nrog kev yug qav?
- Qhov twg yog lub embryonic precursor rau tib neeg qaum qaum?
Video: Thaum fertilization cov ntsiab lus acrosomal?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Cov ntsiab lus suav nrog nto antigens tsim nyog txhawm rau khi rau lub qe cell membrane, thiab ntau cov enzymes uas muaj lub luag haujlwm rau kev tawg ntawm lub qe txheej tawv thiab tso cai rau fertilization tshwm sim.
Yuav ua li cas thaum lub sijhawm Acrosomal tshuaj tiv thaiv?
Cov tshuaj tiv thaiv acrosome tso cai cov phev los ntawm exocytotic tso tawm ntawm acrosomal enzymes nkag mus rau zona pellucida ntawm lub qeCov kab mob tshwj xeeb zona pellucida protein uas ua haujlwm ua cov phev receptor kuj txhawb nqa. Cov xwm txheej uas ua rau fusion ntawm cov ntshav plasma thiab cov txheej txheem acrosomal membrane.
Acrosome cov tshuaj tiv thaiv hauv fertilization yog dab tsi?
Cov tshuaj tiv thaiv acrosome uas tshwm sim tom qab phev capacitation, yog ib qho kev tshwm sim exocytotic ntxias los ntawm Ca ++ influx. Nws ua lub luag haujlwm tseem ceeb thaum lub sij hawm fertilization, los ntawm kev ua spermatozoa tuaj yeem nkag mus rau lub zona thiab muaj peev xwm sib txuas nrog lub qe ntshav plasma membrane.
Dab tsi yog lub xov tooj loj tshaj plaws koom nrog kev yug qav?
Qab qe yog lub cell loj; nws qhov ntim yog tshaj 1.6 lab lub sij hawm loj dua li ib txwm Qav cell. Thaum lub sij hawm embryonic txoj kev loj hlob, lub qe yuav hloov mus rau hauv ib tug tadpole uas muaj tsheej lab ntawm cov hlwb tab sis muaj tib cov nyiaj ntawm cov organic teeb meem. Sab saum toj hemisphere ntawm lub qe - tus tsiaj ncej - yog tsaus.
Qhov twg yog lub embryonic precursor rau tib neeg qaum qaum?
Nyob rau hauv kev loj hlob chordate (xws li vertebrates), lub neural rajyog lub embryonic precursor rau lub hauv paus paj hlwb, uas yog tsim los ntawm lub hlwb thiab qaum qaum.
Pom zoo:
Dab tsi ntawm cov hauv qab no yog cov ntsiab lus ntawm kev sib txuas lus qauv ntawm de-escalation?
Lub Yim Hli Mloog. Kev mloog tso cai rau tus neeg npau taws "dej," uas yog txhais tau tias ua kom lub zog npau taws. … Acknowledge. Relaying tias koj nkag siab tias tus neeg lub ntsiab lus yog dab tsi los yog kev xav pab los ntawm kev lees paub lawv cov kev xav.
Nyob rau hauv cov ntsiab lus ntawm iot yog dab tsi lub ntsiab lus ntawm ubiquitous?
ABSTRACT. Ubiquitous Internet ntawm Yam yog hais txog kev sib txuas lus thiab kev sib cuam tshuam ntawm cov ntaub ntawv txhua lub sijhawm, txhua qhov chaw, leej twg, thiab txhua yam. Lub hwj chim thoob plaws Is Taws Nem ntawm Yam (UPIoT) yog hais txog kev siv IoT thev naus laus zis thoob plaws hauv lub tshuab hluav taws xob .
Yuav ua li cas sau cov lus sib cav rau cov lus teb cov lus sau?
Qhia meej meej txog koj qhov kev sib cav. Koj qhov kev sib cav yuav tsum yog qhia meej meej txog txhua yam ntawmlub ncauj lus uas koj tau muab, thiab nws kuj yuav tsum tau ua kom pom tias koj tuaj yeem xav ntawm nws tus kheej (yog tias koj tsom mus rau qib siab), txawm tias nws txawv.
Lub ntsiab lus twg suav nrog cov ntsiab lus tseem ceeb thiab hauv qab ntawm cov khoom?
Lub ntsiab lus twg suav nrog qhov tseem ceeb thiab hauv qab ntawm cov ntaub ntawv ntxiv rau kev koom nrog cov khoom? kev nyeem ntawv . Koj hu dab tsi txog cov txheej txheem qhia txog cov ntaub ntawv tseem ceeb? Kev xaiv qhov tseem ceeb / nqes hauv qabyog siv los pab cov tub ntxhais kawm npaj qhov lawv tau nyeem los ntawm kev xaiv qhov tseem ceeb.
Cov ntsiab lus ntawm kev tshawb pom cov lus xaus thiab cov lus pom zoo yog dab tsi?
Kev txhais lus los ntawm tus kws tshawb fawb txog qhov tseem ceeb ntawm qhov kev tshawb pom ntawmib txoj haujlwm tshawb fawb rau cov neeg siv khoom lag luam, nrog rau cov lus pom zoo rau kev nqis tes ua . Cov ntsiab lus ntawm kev tshawb pom thiab qhov xaus yog dab tsi?
