Eukaryotes are organisms whose cells contain a clearly defined nucleus. Unlike prokaryotes, eukaryotes do not contain primitive organelles. Instead, membrane-bound well defined organelles are found in a eukaryotic cell. A typical eukaryotic cell is larger than that of a prokaryote. Eukaryotic cells also contain a cytoskeleton made up of microfilaments, intermediate filaments, and microtubules. This cytoskeleton helps in defining the cell’s shape