Articles > Eukaryote definition – quiz Eukaryote definition – quiz Quiz Choose the best answer. 1. What is a eukaryote? A single-celled organism An organism that has a nucleus An organism that lacks membrane-bound organelles 2. Which of these organisms are eukaryotes? Bacteria Fungi Archaea 3. Membrane-bound structures inside a cell Organelles Inclusions Cytoplasm 4. Unicellular eukaryotes Archaea Protozoa Fungi 5. Multicellular eukaryotes Animals Algae Protists Send Your Results (Optional) Your Name To Email Time is Up!