Cell ọrụ na cell center

Mkpụrụ ndụ nke ihe niile dị ndụ ntule nwere a yiri Ọdịdị. All nke ha na-ekewet nke na plasma akpụkpọ ahụ envelopu gburugburu ya (glycocalyx na ụmụ anụmanụ ma ọ bụ cell mgbidi: dịkwa ka usoro ha - nke chitin na osisi - cellulose), cytoplasm (nke na-emi odude organelles, ọ bụla nke rụrụ ya ọrụ, cell center, e.g. atụ ke nkewa) na ntọala, nke na-echebe DNA (ma e wezụga n'ihi prokaryotes).

cell organelles

Ndị a gụnyere ribosomes, lysosomes, mitochondria, Golgi ngwa, endoplasmic reticulum na cell center. Na osisi sel ịnwekwa kpọmkwem organelles ndị pụrụ iche na ha - na vacuole. Ha akpọkọtara achọghị bekee plastids (chromoplasts, leucoplasts, chloroplasts, na nke ikpeazụ emee photosynthetic usoro). The ọrụ nke cell center, mitochondria, ribosomes, na akụkụ ndị ọzọ dị oké mkpa. Mitochondria egwu ọrụ nke pụrụ iche ike ọgbọ ụgbọ, e nwere a usoro nke intracellular respiration. Ribosomes na-ahụ maka mmepụta nke na-edozi site synthesizing ha si onye amino asịd na ọnụnọ nke mRNA, nke e dere ozi na bekee mkpa cell. Lysosomal ọrụ nọ cleavage nke chemical ogige iji enzymes, nke na-ẹdude n'ime organelle. Golgi ngwa nakọtara na retains ụfọdụ bekee. Endoplasmic reticulum bụkwa idem ke metabolism.

Cellular Center - Ọdịdị na ọrụ

Nke a organelle a na-akpọ centrosome. The ọrụ nke cell center bụ ike overestimate - enweghị a organelle gaghị ekwe omume cell nkewa. Ọ mejupụtara abụọ. Na nke a cell center yiri ribosome, Ọdịdị nke nke na-agụnye abụọ halves. Part centrosome akpọ centrioles, onye ọ bụla n'ime ha anya dị ka a oghere cylinder kpụrụ nke microtubules. Ha na-mere ndokwa perpendicular ka ọ bụla ọzọ. The ọrụ nke cell center na centrioles spindle guzobere n'oge mitosis ma ọ bụ meiosis.

Dị ka cell abahade?

E nwere isi ihe abụọ ụzọ - meiosis na mitosis. cell center ọrụ na-egosipụta ma Filiks. Na na mbụ na nke abụọ mgbe, nkewa na-ewe ebe ọtụtụ nkebi. Igbunye ndị na-esonụ nkebi: prophase, metaphase, anaphase, telophase. Meiosis na-agụnyekarị abụọ consecutive cell nkewa, oge n'etiti ha a na-akpọ interphase. N'ihi ya, usoro nke mkpụrụ ndụ na diploid chromosomes (abụọ) a kpụrụ na otutu haploid (otu). The ọnụ ọgụgụ nke chromosomes n'oge mitosis na-adịghị belata - nwaanyị mkpụrụ ndụ na-enweta a diploid. E nwekwara a na usoro maka nkerisi ka amitosis. Na nke a, ndị isi, na mgbe ahụ dum cytoplasm dị nnọọ kewaa abụọ. Nke a na ụdị bụghị dị ka nkịtị dị ka abụọ ndị mbụ, ya emee predominantly n'etiti mfe. Cell center na usoro a abụghị mmekọahụ.

Ikere na nkewa nke cell center

Prophase n'aka na-akwadebe maka usoro nke mitosis ma ọ bụ meiosis, nuklia akpụkpọ ahụ gbarie ya n'ogologo. N'oge metaphase cell center na-ná mgbagwoju n'ime abụọ dị iche centrioles. Ha, n'aka, achụsakwa na-abụghị okporo osisi nke cell. Mgbe a na ogbo, ndị chromosomes n'ahịrị tinyere ụwa. Mgbe ahụ, ha threaded spindle mmasị ka centrioles ka dị iche iche chromatids nke ọ bụla chromosome a mmasị abụghị centrioles. N'oge nile ọ bụla metaphase chromosome gbawara n'ime iche iche chromatids na centrioles na ndido urụk na-abụghị okporo osisi na-adọta. N'oge telophase nuclear shei a kpụrụ, na cytoplasm abahade na n'ikpeazụ kpụrụ nwa mkpụrụ ndụ.