Chapter 22—Introduction to the Plant Kingdom: Bryophytes Key
1. Green algae and plants share all of the following except one. Which is the exception?
2. Plants are thought to have evolved from ancient green algae because
3. Plants differ from algae in that
4. The most direct ancestors of plants are the
5. The function of the cuticle is to
6. Which of the following statements concerning stomata is FALSE?
7. The function of gametangia is to
8. Multicellular gametangia
9. The term “alternation of generations” means
10. In the alternation of generations life cycle, ____ are reproductive cells produced by mitosis.
11. The sporophyte generation produces ____ by ____.
12. The gametophyte generation produces ____ by ____
13. The type of gametangium that bears a single egg is called a(n)
14. The male gametangium is the
15. After a sperm swims down the neck of the archegonium, the next cell to be formed is the
16. The zygote divides by ____, immediately forming a multicellular ____.
17. The spore mother cell produces ____ by ____.
18. Which of the following is NOT one of the four main groups of plants?
19. Bryophytes rely on ____ and ____ to obtain water and dissolved nutrients, because they lack vascular
tissues.
20. Bryophytes are typically quite small because
21. ____ is a vascular tissue that conducts ____.
22. The chemical ____ in cell walls is a polymer that provides strength and enables plants to grow tall.
23. The most recent group of plants to appear in the fossil record is the
24. Mosses are placed in the phylum
25. Which of the following statements about the mosses is FALSE?
26. In mosses, sperm cells are discharged from the antheridium
27. Which of the following could NOT be part of a moss gametophyte?
28. Which of the following is NOT part of the sporophyte generation in mosses?
29. The spore mother cells develop within the ____ of the sporophyte.
30. The moss sporangium is called a
31. The part of the moss life cycle that most closely resembles a filamentous green alga is the
32. Which of the following are the 2n cells found inside the capsule?
33. Which of the following statements about mosses is FALSE?
34. Mosses
35. The moss gametophyte generation
36. The moss sporophyte generation
37. Mosses, hornworts, and liverworts are not considered completely adapted to land because they
38. The need for water as a transport medium for sperm cells in bryophytes
39. Most liverworts
40. Some liverworts, such as Marchantia,
41. Which of the following is a thalloid liverwort?
42. Which of the following statements concerning liverworts is FALSE?
43. In the Marchantia life cycle, spore mother cells are located inside the
44. Hornworts belong to the phylum
45. The archegonia and antheridia of hornworts
46. Who am I? I have a single large chloroplast in each cell.
47. Which of the following is a hornwort?
48. In the hornworts, the “horn” is actually a(n)
49. In which of the following does the sporophyte continue to grow from its base for the remainder of the
gametophyte’s life?
50. The most ancient group of plants alive today are the
51. Hornworts
52. Which of the following statements concerning gemmae is FALSE?
53. Plants are thought to have descended from the stoneworts.
54. In contrast to algae, most plants have unicellular gametangia.
55. Three features of plants that facilitated their survival on land are a waxy cuticle, stomata, and multicellular
gametangia.
56. In plants, the gametophyte is formed from the union of two gametes, and the sporophyte is formed from the
union of two spores.
57. The spores produced by meiosis represent the first stage of the gametophyte generation.
58. The spore mother cell is a diploid cell.
59. Plants labeled “higher” are more nearly perfect than plants labeled “lower.”
60. Bryophytes are an evolutionary sideline and not directly ancestral to higher plants.
61. The absorptive structures of mosses are called rhizoids.
62. Mosses possess true roots, stems and leaves.
63. Vascular plants are those plants possessing well-developed vascular tissues in their roots, stems and leaves.
64. The green “carpets” of moss in the forest are sporophyte plants.
65. The moss sporophyte is attached to and nutritionally dependent on the gametophyte.
66. Some mosses lack a cuticle.
67. Mosses are not significant in any ecosystem.
68. In mosses, archegonia secrete chemicals that attract sperm.