eukaryotic cells : the cells like onion cells and cheek cells having well-organised nucleus with a nuclear membrane are designated as eukaryotic cells. all organisms other than bacteria and bluegreen algae are eukaryotes ( eu : true , karyon : nucleus )

prokaryotic cells : the cells having nuclear material with out nuclear mambrane are termed prokaryotic cells.( pro : primitive , karyon: nucleus )

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prokaryotic cell: it is a cell which is without nuclear membrane and it is mostly red blood cells,cyno bacteria
Eukaryotic cell: it is a cell with nuclear membrane and it is mostly human and plant cells