Angiosperms
50 Questions
| Total Attempts: 137
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A fill in the blank quiz over angiosperms.
Questions and Answers
- 1.Having the anthers and carpels produced in separate flowers on the same individual.
- 2.A cavity within a sporangium or a cavity of the ovary in which ovules occur.
- 3.A flower cluster, with a definite arrangement of flowers.
- 4.The stalk of the ovule.
- 5.The stalk of a stamen.
- 6.The outer wall layer of a spore or pollen grain.
- 7.A pattern of floral organization in which the sepals, petals, and stamens apparently grow from the top of the ovary.
- 8.A tissue, containing stored food, that develops from the union of a male nucleus and the polar nuclei of the central cell; it is digested by the growing sporophyte either before or after the maturation of the seed; found only in angiosperms.
- 9.The female gametophyte of angiosperms, generally an eight-nucleate, seven-celled structure; the seven cells are the egg cell, two synergids and three antipodals, and the central cell.
- 10.The egg cell and synergids located at the micropylar end of the female gametophyte, or embryo sac, of angiosperms.
- 11.The fusion of the egg and sperm and the simultaneous fusion of the second male gamete with the polar nuclei; a unique characteristic of all angiosperms.
- 12.The opening of an anther, fruit, or other structure, which permits the escape of reproductive bodies contained within.
- 13.The petals collectively.
- 14.The region of an ovule or seed where the funiculus unites with the integuments and the nucellus.
- 15.Relatively large vacuolate cells in a subsurface position in apical meristems of shoots.
- 16.Pertaining to a flower with one or more carpels but no functional stamens; also called a pistillate.
- 17.One of the members of the gynoecium, or inner floral whorl; encloses one or more ovules.
- 18.The sepals collectively; the outermost flower whorl.
- 19.Three cells of the mature embryo sac, located at the end opposite the micropyle.
- 20.The pollen-bearing portion of a stamen.
- 21.The floral whorl that comprises the stamens.
- 22.In angiosperms, the fusion of the second male gamete, or sperm, with the polar nuclei, resulting in the formation of a primary endosperm nucleus, which is triploid in most groups.
- 23.Nutritive tissue in the sporangium, particularly an anther.
- 24.A slender column of tissue that arises from the top of the ovary and through which the pollen tube grows.
- 25.The region of a carpel that serves as a receptive surface for pollen grains and on which they germinate.
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