Label the Structures Seen in the Life Cycle to the Right

Name ______

Date ______Plants: Introduction and Classification Quiz #2

Label the structures seen in the life cycle to the right.

______1. ______2. ______3. ______4. ______5. ______6. ______7. ______8. ______9. ______10. ______11. ______12. ______13. What is the name of the organism seen in this life cycle? ______14. To what group of plants does this organism belong?

______15. In the above life cycle, what generation is dominant?

______16. Give two reasons why this organism is not well suited for a life on land.

______17.

______18. Gametophytes always produce gametes by what process?

______19. The sporophyte plant produces spores by what process?

______20. Female gametophytes produce eggs in what structures?

______21. Male gametophytes produce sperm in what structures?

______22. What is the chromosome number of the gametophyte generation?

______23. What is the chromosome number of the sporophyte generation? ______24. ______25. ______26. ______27. ______28. ______29. ______30. ______31. ______32. ______33. ______34. ______35. ______36.

______37. What organism is seen in the life cycle above?

______38. What two parts compose the sporophyte plant?

______39. To what group of plants does this organism (seen above) belong?

______40. In the above life cycle, what is the dominant generation?

______41. In both of these life cycles, how does the sperm reach the egg?

______42. What name is given to the young gametophyte plant in the mosses?

______43. Name given to root-like structures that are used for anchorage and for the absorption of water.

44. Are the bryophytes vascular or nonvascular plants? What does this mean? What is the consequence of this?

1. antheridial ray 25. stalk 2. archegonial ray 26. rhizoids 3. thallus 27. archegonium 4. gemmae cup 28. egg 5. rhizoids 29. antheridium 6. antheridium 30. sperm 7. sperm 31. zygote 8. archegonium 32. young gametophyte 9. egg 33. seta 10. spores 34. capsule 11. old archegonium 35. spores 12. sporophyte plant 36. protonema 13. liverwort 37. moss 14. bryophytes 38. seta and capsule 15. gametophyte 39. bryophytes 16. Bryophytes have motile gametes, which is a 40. gametophyte disadvantage on land. Water has to be 41. The sperm must swim to the egg in present for fertilization to occur. rainwater or heavy dew. 17. Bryophytes do not have vascular tissue, and 42. protonema therefore do not have true roots, stems and 43. rhizoids leaves. 44. The bryophytes are nonvascular plants. 18. mitosis This means that they do no possess xylem 19. meiosis and phloem. The bryophytes are small and 20. archegonia grow very low and close to the ground. 21. antheridia Water moves through the plant body by 22. haploid, 1N osmosis. The plant cannot grow tall because 23. diploid, 2N there is no way to get water up the plant. 24. leaf-like structure

Created by Amy Brown – Science Stuff Copyright © March 2013 Amy Brown (aka Science Stuff) All rights reserved by author. This document is for your classroom use only. This document may not be electronically distributed or posted to a web site.