Qhov Tseem Ceeb - Pinocytosis vs Receptor Mediated Endocytosis
Molecules thiab ions raug thauj mus rau hauv thiab tawm ntawm tes los ntawm cov cell membranes. Qhov kev txiav txim no tuaj yeem tshwm sim nquag, dhau los lossis ua kom yooj yim rau ntau txoj hauv kev. Active thauj siv zog. Endocytosis yog ib txoj hauv kev thauj cov molecules hauv cov hlwb kom nquag plias. Endocytosis txhais tau tias yog kev noj cov teeb meem los ntawm cov cell uas muaj sia nyob los ntawm invagination ntawm nws daim nyias nyias los tsim ib lub vesicle. Phagocytosis, receptor mediated endocytosis thiab pinocytosis yog hom endocytosis. Pinocytosis yog kev noj cov kua rau hauv cov hlwb los ntawm budding ntawm me me vesicles los ntawm cell membrane. Receptor mediated endocytosis yog txheej txheem uas nqus cov molecules tshwj xeeb thiab cov kab mob hauv lub cell, paub txog cov molecules los ntawm receptors nyob rau hauv cell membrane thiab tom qab ntawd los ntawm kev tsim cov hlwv me me los ntawm cov cell membrane. Qhov sib txawv tseem ceeb ntawm pinocytosis thiab receptor mediated endocytosis yog nyob rau hauv pinocytosis, endocytic vesicles nonspecifically nqus cov molecules los ntawm cov kua dej extracellular mus rau cov hlwb thaum nyob rau hauv receptor mediated endocytosis, receptors tshwj xeeb paub thiab khi nrog extracellular macromolecules thiab thauj mus rau lub cell.
YPinocytosis yog dab tsi?
Pinocytosis yog ib hom kab mob endocytosis uas cov kua dej ntxiv hauv lub cell los ntawm kev tsim cov vesicles me. Cov vesicles endocytotic no yog invaginated los ntawm cell membrane. Cov molecules me me uas raug tshem tawm hauv cov kua dej ntxiv yog thauj los ntawm cov txheej txheem no. Pinocytosis tsis xaiv cov molecules los thauj. Tag nrho cov me me molecules hauv dej tau noj los ntawm pinocytosis. Li no, nws tsis yog txheej txheem tshwj xeeb; nws kuj tsis yog txheej txheem ua tau zoo.
Daim duab 01: Pinocytosis
Pinocytosis yog ib qho yooj yim mechanism uas tshwm sim nyob rau hauv feem ntau ntawm cov hlwb. Pinocytosis yog cov txheej txheem thauj molecule nyob rau hauv daim siab hlwb, raum hlwb, capillary hlwb thiab epithelial hlwb.
Receptor Mediated Endocytosis yog dab tsi?
Receptor mediated endocytosis yog ib hom kab mob endocytosis uas macromolecules tau nkag mus rau hauv lub cell xaiv los ntawm cov kua dej ntxiv. Qhov no mechanism yog kho los ntawm cov receptors ntawm lub cell nto. Receptors paub txog cov macromolecules tshwj xeeb tsim receptor-macromolecule complexes. Cov receptor-macromolecule complexes nyob rau hauv lub pits uas yog tsim los ntawm cov plasma membrane thiab coated nrog clathrin. Tom qab ntawd cov receptor-macromolecule complexes nyob rau hauv clathrin coated vesicles tsim los ntawm clathrin coated pits. Lub clathrin-coated vesicles ces fuse nrog thaum ntxov endosomes. Macromolecule-receptor complexes dissociate nyob rau hauv txo pH theem ntawm endosomes; macromolecules raug xa mus rau lysosomes thaum receptors raug xa rov qab mus rau lub cell nto.
Daim duab 02: Receptor mediated endocytosis
Receptor mediated endocytosis yog ib qho tshwj xeeb ntawm kev noj cov tshuaj molecules rau hauv cov hlwb, tsis zoo li pinocytosis. Cov ntaub ntawv yuav tsum tau thauj mus rau hauv yog txiav txim los ntawm cov receptors nyob rau ntawm lub cell membrane nto. Nws yog cov txheej txheem ua tau zoo dua li pinocytosis.
Dab tsi zoo sib xws ntawm Pinocytosis thiab Receptor Mediated Endocytosis?
- Pinocytosis thiab receptor mediated endocytosis yog cov qauv ntawm endocytosis.
- Ob lub tswv yim txhawb nqa cov molecules hauv lub cell los ntawm kev tsim cov vesicles me.
Qhov txawv ntawm Pinocytosis thiab Receptor Mediated Endocytosis yog dab tsi?
Pinocytosis vs Receptor Mediated Endocytosis |
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| Pinocytosis kev noj cov kua rau hauv lub cell los ntawm cov hlwv me me los ntawm cov cell membrane. | Receptor mediated endocytosis yog txheej txheem ntawm kev thauj cov molecules hauv lub cell los ntawm kev lees paub thiab khi rau lub cell nto receptors thiab tsim cov vesicles. |
| Kev xaiv | |
| Pinocytosis tsis xaiv cov molecules rau uptake. Nws absorbs ib yam dab tsi hauv cov kua dej extracellular. | Receptor mediated endocytosis yog qhov tshwj xeeb heev. Nws thauj cov molecules tshwj xeeb uas tau lees paub los ntawm cov receptors. |
| Efficiency | |
| Pinocytosis tsis tshua muaj txiaj ntsig piv rau receptor mediated endocytosis. | Receptor mediated endocytosis yog qhov ua tau zoo dua li pinocytosis. |
| Mechanism | |
| Pinocytosis muaj txoj hauv kev yooj yim ntawm kev nqus cov tshuaj | Receptor mediated endocytosis yog qhov sib piv nyuaj dua li pinocytosis. Nws suav nrog receptors thiab clathrin. |
| Pinocytosis absorbs dej ua ke nrog me me molecules. | Receptor mediated endocytosis uptake tsuas yog cov khoom loj. |
| Nyob ntawm cov vesicles tsim | |
| Vacuoles yog tsim thaum tus txheej txheem ntawm pinocytosis | Endosomes yog tsim thaum lub sij hawm receptor mediated endocytosis. |
Summary – Pinocytosis vs Receptor Mediated Endocytosis
Pinocytosis thiab receptor mediated endocytosis yog ob hom endocytosis mechanisms uas ua haujlwm hauv feem ntau ntawm cov hlwb. Pinocytosis yog ib txoj hauv kev yooj yim uas cov kua dej tawm hauv lub cell tsis muaj kev xaiv. Receptor mediated endocytosis yog cov txheej txheem nyuaj uas macromolecules hauv cov kua dej ntxiv tau txheeb xyuas los ntawm cov cell nto receptors thiab coj mus rau hauv lub cell los ntawm clathrin coated vesicles. Pinocytosis yog cov txheej txheem tsis tshwj xeeb thaum receptor mediated endocytosis yog cov txheej txheem tshwj xeeb. Qhov no yog qhov txawv ntawm pinocytosis thiab receptor mediated endocytosis.
Download PDF Version of Pinocytosis vs Receptor Mediated Endocytosis
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm Pinocytosis thiab Receptor Mediated Endocytosis.
