Study Guide 2 Prokaryotes vs. eukaryotes Similarities – DNA, RNA, Ribosomes, Cytoplasm Differences – Prokaryotes lack membrane enclosed organelles Draw Draw Prokaryotes divide by binary fission and eukaryotes divide by mitosis or meiosis Ribosome - the sight of protein synthesis Help Archaea are different than Bacteria because they have many similarities with Eukarya and because they have different genetic sequences in their rRNA and have unique membrane lipids and cell wall construction. They are extremeophiles. Fungus – consists of hyphae, a nucleus and buds. Protists – consist of a nucleus, food vacuoles, pesupod, endoplasm, and ectoplasm. Extracellular digestion – breakdown of food outside of cells . Endocytosis – when a cell engulfs another particle and breaks it down inside the cell.