This ZERO-prep biology activity uses an interactive diagram to shrink students down to view the structures of a plant cell. I use this activity to introduce cell structure and organelles. Students will read about the structure and function of each cell part, answer questions in a provided packet, and color each cell part on a diagram. Structures included: cell membrane, cell wall, cytoplasm, cytoskeleton, centrosomes, nucleus, nucleolus, ribosomes, rough ER, smooth ER, Golgi apparatus, mitochon