Diagram of a typical animal cell. Organelles are labelled as follows:

1. Nucleolus
2. Nucleus
3. Ribosome
4. Cell membrane
5. Rough endoplasmic reticulum
6. Golgi apparatus
7. Cytoskeleton
8. Smooth endoplasmic reticulum
9. Mitochondrion
10. Vacuole
11. Cytoplasm
12. Lysosome
13. Centriole