Across
- 2. A thick-walled cell that helps support a plant.
- 4. The loosely packed cells in a plant leaf that allow gases to move easily to the palisade layer.
- 6. Another name for nonvascular plants.
- 7. Conducts water and other materials in some plants.
- 8. A vascular tissue that moves finished sugars out of the leaf.
- 9. Waxy coating that helps prevent water loss in plants.
- 10. The rings in a woody stem that result from different growth rates of xylem at different times of the year.
- 12. The tightly packed cells in a plant leaf that make most of the plant's food.
- 15. Openings in the underside of the leaf that allow gases to move in and out of the leaf.
- 16. The young plant that grows into a new sporophyte.
- 17. The underground stem in most ferns.
- 18. The lower part of a bryophyte that is green and leafy with rhizoids.
- 20. Plants that have vascular bundles evenly distributed throughout their stems.
- 21. A kind of cellular organelle, such as chloroplasts.
- 22. Their seeds are not fully covered and include pine trees, cycads, and ginkgoes.
- 24. A vascular tissue that moves water and nutrients into the leaf.
Down
- 1. The vascular tissue of a leaf; a type of vascular bundle.
- 3. A kind of pressure caused by the presence of water inside a plant's central vacuoles.
- 5. Long chains of sugar that make plant cell walls.
- 11. Their seeds are fully covered by a fruit; "flowering plants."
- 13. The part of a bryophyte that has the capsule and stalk; used in making spores.
- 14. A layer of living cells just under the dead cork.
- 19. Plants whose vascular bundles are found in a ring around the out part of the stem.
- 23. A structure produced by some plants to protect the embryo.