Across
- 4. contains the genetic material in a cell
- 5. rigid structure that surrounds a plant cell
- 6. controls what goes in and out of a cell
- 7. having only one cell
Down
- 1. site of aerobic respiration
- 2. most chemical reactions in a cells happen here
- 3. having many cells
- 8. structure inside a cell where photosynthesis happens