AP Biology Plant Classification SG 4-25-13 http://www.youtube.com/watch?v=X4L3r_XJW0I 1. Give the 4 major groups of plants. 2. Explain what the word monophyletic means and how it applies to these groups of plants. 3. Of what other significance are these 4 groups of plants? 4. Briefly explain the following characteristics of land plants: - eukaryotic - autotrophs - cell wall - terrestrial - alternation of generations - embryophytes 5. Give the name for the haploid step in alternation of generations. 6. Give the name for the diploid step in the alternation of generations. 7. How is the gametophyte different than a human gamete? 8. What are gametophytes formed from and from what process? 9. Explain how sporophytes are formed and from what process. 10. Give an example of a gametophyte plant type. 11. Give an example of a sporophyte plant type. 12. What does it mean that plants are self- sufficient? 13. Where did plants start their evolution? 14. What characteristics do bryophytes have that the first land plants must have had? 15. How did the move water around? How is that different from full land plants? 16. What characteristics do the vascular plants have that the bryophytes did not. Give an example of a vascular plant. 17. What characteristics do the gymnosperms have that the vascular plants did not. Give an example of a gymnosperm. 18. What characteristics do the angiosperms have that the gymnosperms did not. Give an example of an angiosperm. 19. Why are angiosperms so successful on land? 20. Why is the flower of grass so plain?