Across
- 2. is the brain of a cell
- 6. make up everything
- 7. is in plants to help photosynthesis
- 10. these cells are in human beings
Down
- 1. cells are what size
- 3. plant cells are generally what shape
- 4. substance that surrounds organelles
- 5. plant cells have these but animal cells do not
- 8. these cells are in trees
- 9. cells are in all what things