Yini i-phagocytosis nokuthi kwenzeka kanjani

-Delile

• Njengoba kwenzeka
• Yenzelwe ini

I-Phagocytosis yinqubo yemvelo emzimbeni lapho amaseli amasosha omzimba ahlanganisa izinhlayiya ezinkulu ngokukhishwa kwama-pseudopods, okuyizakhiwo ezivela njengokwandiswa kolwelwesi lwe-plasma, ngenhloso yokulwa nokuvimbela izifo.

Ngaphezu kokuba inqubo eyenziwe ngamaseli omzimba, i-phagocytosis nayo ingenziwa ngama-microorganisms, ikakhulukazi i-protozoa, ngenhloso yokuthola izakhamzimba ezidingekayo ekukhuleni nasekwandeni kwazo.

Njengoba kwenzeka

I-phagocytosis ejwayelekile futhi ejwayelekile eyenzekayo ihlose ukulwa nokuvimbela ukukhula kwezifo futhi, ngenxa yalokho, kwenzeka ngezinyathelo ezimbalwa, okungukuthi:

1. Ukusondela, lapho ama-phagocyte asondela emzimbeni wangaphandle, okuyizinto ezincane noma izakhiwo nezinto ezikhiqizwe noma ezivezwa yibo;
2. Ukuqashelwa nokunamathela, lapho amangqamuzana abona khona izakhiwo ezivezwa ebusweni begciwane, zinamathele kuwo futhi zenziwe zisebenze, kuphakamisa isigaba esilandelayo;
3. Ukuvalelwa, ehambelana nesigaba lapho ama-phagocyte akhipha ama-pseudopods ukuze ahlanganise i-ejenti ehlaselayo, okuholele ekwakhiweni kwe-phagosome noma i-phagocytic vacuole;
4. Ukufa nokugaywa kwenhlayiya ebiyelwe, equkethe ukusebenza kwezinqubo zamangqamuzana ezikwazi ukukhuthaza ukufa kwe-ejenti elithathelwanayo elinegciwane, okwenzeka ngenxa yokuhlangana kwe-phagosome nama-lysosomes, okuyisakhiwo esikhona kumaseli akhiwe ngama-enzyme, okwenza ku-vacuole yokugaya ukudla, lapho ukugaya kwe-intracellular kwenzeka.

Ngemuva kokugaywa kwe-intracellular, ezinye izinsalela zingahlala ngaphakathi kwe-vacuoles, ezingasuswa kamuva yiseli. Lezi zinsalela zingabanjwa yi-protozoa, futhi nge-phagocytosis, ukuze isetshenziswe njengezakhamzimba.

Yenzelwe ini

Ngokuya ngomenzeli owenza i-phagocytosis, i-phagocytosis ingenziwa ngezinhloso ezimbili ezihlukile:

• Yilwa nezifo: kulokhu, i-phagocytosis yenziwa ngamaseli angamasosha omzimba, abizwa ngokuthi ama-phagocyte futhi asebenza ngokubandakanya ama-microorganisms we-pathogenic kanye nemfucumfucu yeselula, ukulwa noma ukuvimbela ukuvela kwezifo. Amaseli avame ukuhlobene nale phagocytosis angama-leukocyte, ama-neutrophil nama-macrophage.
• Thola izakhamzimba: i-phagocytosis yale njongo yenziwa yi-protozoa, equkethe imfucumfucu yeselula ukuthola izakhamzimba ezidingekayo ekukhuleni nasekwandeni kwazo.

I-Phagocytosis yinqubo yemvelo yomzimba futhi kubalulekile ukuthi amaseli e-phagocytic kufanele akhethe i-ejenti okumele ifakelwe i-phagocyted, ngoba uma kungenjalo kungaba ne-phagocytosis yamanye amaseli nezakhiwo emzimbeni, ezingaba nomthelela ekusebenzeni okufanele lomzimba.