I-cell

Ngokwa-bayoloji, i-cell sisiseko sesakhiwo see-organisms. Zonke ii-cells zenziwe ngezinye ii-cells.

Umphandle we-cell wohlulwe kumphakathi wawo ngenwebu i-cell membrane. Ngaphakathi wezinye ii-cells, amalungwa azizicuku ze-cell ahlala ngokwahlukana kwamanye. Laa malungwana ngokwahlukana kwawo abizwa ngokuba zii-organelles (njengee-organs). Ilungwana ngalinye kwi-cell linomsebenzi walo owahlukileyo. Umzekelo ubonakala kwi-nucleus (apho i-DNA ikhoyo), kunye ne-mitochondria (apho kwenziwa khona amandla anokusetyenziswa).^[1][2]

Zimbini ezona ntlobo zee-cells: zii-prokaryotic kunye nee-eukaryotic. Ii-Prokaryotes, ii-bacteria kunye neearchaea, zii-cells ezibuthathaka kuba zingena cell nucleus. Zinee-bacterial microcompartments, igobhozana eliqulethe iiproteni nee-enzymes.

Ii-Eukaryotes zona zii-cells ezomeleleyo noko kuba zinee-organelles ezininzi kwakunye nezinye izakhiwo kwalapha kuyo i-cell. zinkulu zona kunee-prokaryote cells: Ubukhulu bazo bungaphinda-phindwa kali-1000. Ii-Eukaryotes zigcina i-information malunga negenetic (i-DNA) kwii-chromosomes ezikwi-cell nucleus. Ii-Organisms (izinto eziphilayo) ezenziwa kukwakheka kwee-cell ngokuphinda-phindeneyo kuthiwa zii-eukaryotes.

Zii-bacteria nee-archaea kukuphela kweentlobo zee-organisms ze-prokaryotic eziphilayo sithetha nje. Ii-organisms ze-Prokaryotic zikhula phambi kokuba zikhule ii-orgamisms ze-eukaryotic, ngoko ke kubakho ixesha apho ihlabathi lihlala lingenanto kodwa zibe zikhona zona ii-organisms ze-prokaryotic. Kukwakho nee-ntsholongwane, ekunzima kakhulu ukuzicalucalula ngokweentlobo zazo, zibe zingunozala wezifo. Iintsholongwane zenziwa y-i-RNA, okanye i-DNA, kunye ne-protein, kwaye ziyaqhama zizandise ngokwazo ngaphakathi kwii-cells ze-bacteria okanye kwi-eukaryotes.

Ii-organisms ezizii-Unicellular zenziwe nge-cell- enye. Imizekelo yezi organisms zizii-Unicellula nantsi:

• i-Amoeba
• i-Paramecium

Iiorganisms ezii-unicellula kufuneka zi:

• tye
• phefumle (uninzi lwazo lisebenzisa i-oxygen xa zitshintsha iswekile ibe ngamandla)

Zonke ii-organisms ezizii-Unicellular kufuneka zi:

• gutyule ukungcola
• zandise ngokwazo (zenze okokuba zibeninzi)
• khule

abanye bathi:

• zikwazi ukushukuma
• zikwazi ukuba ziyive indawo ezihlala kuyo okanye i-environment yazo.
• zifumane ubushushu bazo elangeni (umzekelo, i-cyanobacteria)
• zivunde (umzekelo, igwele)
• zisebenzise i-anaerobic respiration (umzekelo, iClostridium botulinum)

Iiorganisms ezizii-Multicellular zenziwa kwiicells ezininzi. Zii-organisms ezomeleleyo. Kusenokwenzeka okokuba liqaqobana nje elincinane lee-cells, ukanti isenokuba zizigidi zee-cels. Zonke ke izityalo nezilwanyana zii-organisms ezizii-multicellular. Ii-cells zee-organisms ezi-multicellular azifani. Zimi ngeendlela ezahlukeneyo kwaye azilingani nangobukhulu, kwaye zenza imisebenzi eyahlukeneyo kkuso nasiphi na isidalwa esiphilayo/kwi-organism. Ii-cells zinemisebenzi yazo. Oku kuthetha okokuba zenza olo hlobo luthile kuphela lomsebenzi. Ngokokwazo azikwazi ukwenza yonke into efuneka emizimbeni yezidalwa eziphilayo ukuze ziphile. kufuneka ezinye ii-cells zenze eminye imisebenzi efuneka emzimbeni. Zisoloko ziphila kunye ezi cells kuba zingenakuphila zizodwa, ngaphandle kwezinye ii-cells.

Ii-Cells zaabhaqwa nguRobert Hooke ngo-(1635–1703). Wasebenzisa i-microscope eyayinee-lenses ukujonga kwizakhiwo ezimbini zikacork, nokujonga amagqabi nakwezinye iiinsects. Wakwenza oku ukususela kwiminyaka yoo-1660, waza wanika ingxelo ngalo msebenzi kwincwadi i-Micrographica ngo-1665. Wathiya igama elithi cells ngegama legama le-siLatini elithi-cella, elithetha ukuthi 'gumbi'. Wayekwenza oku kuba wayecinga okokuba ii-cells zibonakala ngathi ngamagunjana amancinane.