1. Ch 30 – Plant Reproduction
Vocabulary Review
Ch 30 – Plant Reproduction

2. A reproductive structure that produces male sex cells in flowerless and seedless plants
Antheridium

3. A female reproductive structure of small, nonvascular plants that produces a single egg and in which fertilization and development take place
Archegonium

4. The production of only one kind of spore
Homospory

5. A cluster of spores or sporangia
Sorus

6. The smaller of the two types of spores produced by most plants that develops into the male gametophyte
Microspore

7. The larger of the two types of spores produced by heterosporous plants; develops into a female gametophyte
Megaspore

8. The production of two or more kinds of asexual spores
Heterospory

9. The outer, protective covering of a body, a body part, an ovule, or a sporangium
Integument

10. The small opening in the wall of an ovule through which a pollen tube enters the ovule
Micropyle

11. A structure in the ovary of a seed plant that contains an embryo sac and that develops into a seed after fertilization; in gymnosperms the ovule is found in the carpel and is structurally simple and naked
Ovule

12. The structure that contains the male gametophyte of seed plants
Pollen grain

13. The transfer of pollen from the male reproductive structures (the anthers) to the tip of a female reproductive structure (the pistil) of a flower in angiosperms or to the ovule in gymnosperms
Pollination

14. A tubular structure that grows from a pollen grain, enters the embryo sac, and allows the male reproductive cells to move to the ovule
Pollen tube

15. The enlarged tip of a flower stalk to which the flower is attached
Receptacle

16. In a flower, one of the outermost rings of modified leaves that protect the flower bud
Sepal

17. One of the usually brightly colored, leaf-shaped parts that make up one of the rings of a flower
Petal

18. The male reproductive structure of a flower that produces pollen and consists of an anther at the tip of a filament
Stamen

19. In flowering plants, the tip of a stamen, which contains the pollen sacs where grains form
Anther

20. In flowers, the part of a stamen that supports the anther
Filament

21. The structure where the ovule is in flowering plants
Carpel

22. The female reproductive part of a flower that produces seeds and consists of an ovary, style, and stigma, made of one or more fused carpels
Pistil

23. In the female reproductive system of animals, an organ that produces eggs; in flowering plants, the lower part of a pistil that produces eggs in ovules
Ovary

24. In plants, the slender, upper part of the pistil
Style

25. The expanded apex of a pistil, supported by the style; the part of the pistil that receives the pollen
Stigma

26. In plants, the female gametophyte that develops from a megaspore; contains the ovum that fuses with a sperm nucleus during fertilization to form an embryo and seven other cells, including the polar bodies that fuse with another sperm nucleus to form endosperm
Embryo sac

27. One of the two haploid nuclei in the embryo sac of a seed plant that fuse with a male gamete to form the triploid cell that develops into the endosperm
Polar nucleus

28. The cell of a pollen grain that gives rise to the pollen tube
Tube cell

29. In a pollen grain, the cell that divides mitotically and forms two sperm cells
Generative cell

30. A sugar-containing fluid secreted by flowers to attract birds or insects for pollination
Nectar

31. The process by which one of the two sperm nuclei fuses with the egg nucleus to produce a diploid zygote and the other fuses with the polar nuclei to produce a triploid endosperm
Double fertilization

32. The production of new individuals
Propagation

33. The protective, outer covering of a seed
Seed coat

34. The developing shoot above the cotyledons in plant embryos; consists of the epicotyl and young leaves
Plumule

35. The portion of the stem of a plant embryo that is between the cotyledons and the first true leaves
Epicotyl

36. The portion of the stem of a plant embryo that is between the cotyledons and the embryonic root
Hypocotyl

37. In plants, the embryonic, or primary, root
Radicle

38. On a plant seed, a scar that marks where the seed was attached to the ovary wall
Hilum

39. A state in which seeds, spores, bulbs, and other reproductive organs stop growth and development and reduce their metabolism, especially respiration
Dormancy

40. An organism that is produced by asexual reproduction and that is genetically identical to its parent; to make a genetic duplicate
Clone

41. Vegetative Reproduction
A type of asexual reproduction in which new plants grow from nonreproductive plant parts
Vegetative Reproduction

42. A root, stem, or leaf that is cut from a living plant and that can produce a new plant
Cutting

43. The process of causing roots to form on stems or branches of a plant that are covered with soil
Layering

44. A technique in which a portion of one plant is attached to the root or shoot of another plant and grows there
Grafting

45. The technique for growing living cells in an artificial medium
Tissue culture