Unit 5 Plants

2. Tiny openings in leaves that regulate gas exchange and water loss.
5. A seed plant with naked seeds not enclosed in fruit.
6. The reproductive structure of angiosperms.
8. Root-like structures that anchor nonvascular plants.
12. Nutritive tissue that feeds the developing embryo in angiosperms.
14. Vascular tissue that transports water and minerals upward.
15. (two words) An angiosperm process in which one sperm fertilizes the egg and another forms endosperm.
17. The loss of water vapor from plant leaves.
18. The diploid stage of a plant that produces spores.
20. The process by which plants convert sunlight into chemical energy.

1. The haploid stage of a plant that produces gametes.
3. Vascular tissue that transports sugars throughout the plant.
4. The mature ovary of a flower that encloses and disperses seeds.
7. (two words) Specialized tissue that transports water, minerals, and sugars.
9. A structure that protects and nourishes a plant embryo.
10. A plant hormone that causes cells to elongate and is involved in phototropism.
11. A nonvascular plant that lacks true roots, stems, and leaves.
13. A flowering plant with seeds enclosed inside a fruit.
16. A waxy protective layer that covers leaves and stems and reduces water loss.
19. The male gametophyte of seed plants.