Chapter 25—The Plant Kingdom: Flowering Plants Key
1. In flowering plants, the ovules are completely enclosed in
2. The flowering plants
3. Angiosperms differ from gymnosperms in that
4. The main difference between angiosperms and gymnosperms is that
5. Like gymnosperms, flowering plants
6. Which of the following statements concerning monocots is FALSE?
7. Eudicots
8. The pistil
9. The male reproductive part of an angiosperm flower is the
10. Which of the following is NOT part of the female reproductive part of a flower?
11. During pollination, a pollen grain lands first on the
12. Gametophytes of flowering plants
13. The single megaspore produced by a megaspore mother cell
14. The most widely studied type of embryo sac has ____ cells with ____ nuclei.
15. Polar nuclei are located in the
16. The ____ releases chemicals that affect pollen tube growth.
17. A tube cell and a generative cell comprise the
18. Pollen grains are produced within
19. In angiosperms, the mature male gametophyte is the
20. Immature male gametophytes
21. In angiosperms, the daughter cells produced by the generative cell are
22. Angiosperms achieve pollen transfer by means of
23. In double fertilization, the two polar nuclei fuse with a sperm cell to produce
24. Only the ____ and ____ participate in double fertilization.
25. One function of fruits is to
26. Which of the following statements concerning apomixis is FALSE?
27. Angiosperm xylem can be distinguished from most gymnosperm xylem by
28. Which of the following is NOT an evolutionary adaptation that contributed to the success of angiosperms?
29. Botanists generally conclude that petals evolved from
30. Based on information gained from studying fossil plants, most botanists think that
31. The first flowering plants were probably
32. Basal angiosperms
33. Flowering plants are ecologically important because
34. Humans who live in highly industrialized countries depend on flowering plants for
35. The magnolia family provides
36. The walnut family provides
37. Characteristics of the cactus family include
38. The mustard family includes
39. The rose family gives us
40. The pea family
41. The potato family
42. Which of the following is NOT a member of the pumpkin family?
43. The ____ family has a capitulum.
44. The ____ family is the most important angiosperm family.
45. Which family am I? I am an epiphyte with a velamen.
46. The century plant belongs to the ____ family.
47. A simple pistil consists of one carpel.
48. Most eudicots have endosperm in their mature seeds.
49. Each microspore mother cell produces four microspores by meiosis.
50. Monocots are much more abundant and diverse than eudicots.
51. A pollen grain that lands on the stigma of a plant of the same species forms a pollen tube that grows down
the style and into the ovary.
52. Double fertilization that results in triploid endosperm and a diploid zygote is unique to angiosperms.
53. Fruits often aid in the dispersal of seeds.
54. Apomixis is a form of sexual reproduction since it involves the production of seeds.
55. A carpel is thought to be a modified leaf.
56. Flowering plants probably descended directly from seed ferns.
57. Amborella represents the oldest surviving group of basal angiosperms.
58. Magnoliids, monocots, and eudicots are thought to have arisen from a single branch point.
59. A spine is a modified leaf characteristic of most cacti.
60. The pumpkin family is one of the largest families of flowering plants.
61. Pseudobulbs are found in the grass family and true bulbs are found in the orchid family.
62. A compound pistil consists of more than one fused ____________________.