Across
- 1. another word for sugar
- 6. light from the sun
- 7. structures within a living cell
- 11. where the specimen is observed
- 12. a gas needed for all living things
- 15. the action of breathing
- 18. absorbed by plants during photosynthesis
- 19. a layer lying outside of cells
Down
- 2. the organelle where photosynthesis occurs
- 3. an organelle which disposes waste
- 4. a layer outside the cytoplasm of a cell
- 5. a process in which plants go through
- 8. the largest organelle in a cell
- 9. organelle that generates chemical energy
- 10. lens closest to the eyes in a microscope
- 13. unit of an organism
- 14. the basic fluid of all living things
- 16. strength required for sustained activity
- 17. an instrument used to view small objects
- 18. the material within a living cell