Across
- 3. the main organs of photosynthesis and transpiration.
- 6. the basic unit of all plants.
- 7. a slit which allows movement of gases in and out of the plant.
- 8. the part of the plant on the ground.
- 12. light coming from the sun.
- 13. an article or substance that is manufactured or refined.
Down
- 1. the basic material from which a product is made.
- 2. one type of gas that produce by photosynthesis.
- 4. an organelle that contains chlorophyll.
- 5. one type of gas that use by photosynthesis.
- 9. blue liquid that surrounds land.
- 10. a simple sugar which is an important energy source in living organisms.
- 11. speed up chemical reactions.