Nucleolus
Ribosome
Vacuole
Endoplasmic Reticulum
Lysosomes
Cytoplasm
Chloroplast
Cell Membrane
Mitochondria
Cell Wall
Organelle
Unicellular
Multicellular
Nucleus
Eukaryotic
Prokaryotic
Cells
Robert Hooke
Anton Van Leeuwenhoek
Matthias Schleiden
Theodor Schwann
Rudolph Virchow
rectangular
Tissue
Organ
Organ System
Cytoplasm