Pinocytosis - ihe bụ nke a?

Nri ga-esi n'ime esịtidem cell ebe efu nke nọ n'ọrụ iga, nke a na-gara site na pụrụ iche enzymes. Na nke a na e nwere abụọ Filiks - pinocytosis na phagocytosis.

General ji mara ndị na usoro

Pinocytosis - ọ bụ a eluigwe na ala ụzọ na-eri, nke bụ ihe e ji mara nke osisi na ụmụ anụmanụ mkpụrụ ndụ. Ya kachasi mkpa idu ke kọntaktị na cell nri na etisasịwo ụdị. Phagocytosis - a yiri usoro, ma e nwere na-etinye obi gị dum site siri ike ahụ.

Ọ maara na pinocytosis bụ ihe dị mkpa mkpali nke e guzobere lysosomes, na phagocytosis atọrọ n'elu ọrịa nke mkpụrụ ndụ site na nje virus. Abụọ ndị a Filiks nwere ọtụtụ ihe na-emekarị, ya mere, ha na-emekarị ịgụnye akpọ - cytosis ma ọ bụ endocytosis, pinocytosis bụ ọbụna ihe jupụtara ebe nile. Ọ bụrụ na umi, on Kama nke ahụ, na-ewepụtara na mkpụrụ ndụ, mgbe ahụ onye na-ekwu okwu nke exocytosis.

Na mkpokọta, anyị nwere ike ikwu na pinocytosis - a usoro nke absorption nke cell mmiri mmiri ụmụ irighiri mmiri.

usoro Atụmatụ

Ugbu a, ọ ga-kwuru na cell ọnụ bụ okpomọkụ dabere na ike ghara ẹkenịmde na 2 ° C, na n'okpuru ihe nke metabolic inhibitors dị ka sodium Fluoride.

Na pinocytosis kpụrụ outgrowths cytoplasm - pseudopodia, nke jikota na onye ọ bụla ọzọ na envelop mmiri mmiri ụmụ irighiri mmiri. Na nke a na-egosipụta na-guzobere, nke na-kewapụrụ n'ebe ndị cell akpụkpọ ahụ na kwapụ site cytoplasm, mbịne n'ime vacuoles akpọ pinosomy.

Rịba ama na pinocytosis - bụkwa n'ihi nke mkpụrụ ndụ oghe virus nkwusioru. Na nke a, kpụrụ vesicles nwere vibrios. Ọ bụ ebe a na ha na-mgbe ụfọdụ gụrụ ogbo nke "undressing". Mgbe akada ibu ụmụ irighiri onye ọgwụ ọjọọ na-aga afụ guzobere na invagination - vacuole, ma usoro nke iga nke ọgwụ ọjọọ eme ihe adịghị oké. Greater mmetụta na absorption nke pharmacological mmadụ bụ ha udi, fineness, na ọnụnọ nke concomitant ọrịa nke digestive akụkụ - mgbu ma ọ bụ afọ, n'ihi na ihe atụ, peptic ọnyá afọ.

protein reabsorption na gbasara akụrụ tubules

Pinocytosis - ifịk usoro nke protein reabsorption na proximal gbasara akụrụ nephron. N'oge ọ na-protein attaches ka ahịhịa ókè. N'ebe a invaginated akpụkpọ ahụ, si otú a kpụrụ mkpọ nwere a protein molekul. Mgbe protein bụ n'ime afụ, ọ na-amalite amalite irekasị n'ime amino asịd, nke ekemende ada site basolateral akpụkpọ ahụ n'ime extracellular ọmụmụ. Ebe ọ bụ na ndị dị otú ahụ iga na-achọ ike, ọ na-akpọ nọ n'ọrụ.

Ọ bụ uru na-arịba ama na e nwere a echiche nke kacha iga nke bekee na-ifịk ifịk reabsorbed. Usoro a na-ejikọta ya na kacha ibu na usoro ime njem. Ọ na-adị mgbe ọnụ ọgụgụ nke njikọ, nwetara n'ime lumen nke gbasara akụrụ tubules, karịa ndị ike nke enzymes na iga na-edozi aka na nyefe.

Dị ka ihe atụ, i nwere ike na-eme na mkpọchị glucose reabsorption na pụtara na proximal tubule asọfe. Ọ bụrụ na ọdịnaya nke umi karịa gbasara akụrụ ọtọ ike, ọ na-amalite iche mmamịrị (nkịtị glucose bụghị ahụrụ).

Meaning nke pinocytosis

Usoro a na-ewe ebe na gbasara akụrụ tubules na nsia epithelium. Ọ bụ maka na absorption na reabsorption nke ọtụtụ ogige (gụnyere protein na abụba) dị mkpa maka kwesịrị ịrụ ọrụ nke ahu.

Ọzọkwa, mgbe aga pinocytosis metabolism site capillary mgbidi. N'ihi ya, nnukwu ụmụ irighiri nke ike banye site na pores nke obere ọbara arịa, ebu pinocytosis. Na nke a na-capillary akpụkpọ ahụ na-invaginated mkpụrụ ndụ, si otú na-akpụ a vacuole nke daputara molekul. Na-abụghị n'akụkụ nke onu na-abụghị usoro amalite na-ebe - emiocytosis.

Ọ kwesịkwara kwuru na pinocytosis - bụ ihe dị mkpa akụrụngwa nke nọ n'ọrụ ion iga ma na-eme. Na na ọ bụ isi usoro nke penetration n'ime esịtidem gburugburu ebe obibi nke elu molekụla bekee nke mkpụrụ ndụ. Ke adianade do, ọ bụ isi n'ụzọ nke penetration nke anụmanụ ma ọ bụ osisi nje na usu cell.