Overview
A cell is the basic structural and functional unit of life.
Types of Cells
- Prokaryotic (no true nucleus) — bacteria
- Eukaryotic (true nucleus) — plants and animals
Important Parts
- Cell membrane: controls entry/exit
- Nucleus: control center (DNA)
- Cytoplasm: jelly-like material where reactions occur
Plant vs Animal Cell (Quick)
- Plant cell has cell wall and chloroplast
- Animal cell does not have cell wall
Key Points
- Cells form tissues → tissues form organs → organs form systems.