Angiosperms
50 Questions
| Attempts: 145
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Having the anthers and carpels produced in separate flowers on the same individual.
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A fill in the blank quiz over angiosperms.
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- 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.
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The stalk of the ovule.
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The stalk of a stamen.
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The outer wall layer of a spore or pollen grain.
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A pattern of floral organization in which the sepals, petals, and stamens apparently grow from the top of the ovary.
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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.
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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.
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The egg cell and synergids located at the micropylar end of the female gametophyte, or embryo sac, of angiosperms.
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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.
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The opening of an anther, fruit, or other structure, which permits the escape of reproductive bodies contained within.
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The petals collectively.
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The region of an ovule or seed where the funiculus unites with the integuments and the nucellus.
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Relatively large vacuolate cells in a subsurface position in apical meristems of shoots.
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Pertaining to a flower with one or more carpels but no functional stamens; also called a pistillate.
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One of the members of the gynoecium, or inner floral whorl; encloses one or more ovules.
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The sepals collectively; the outermost flower whorl.
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Three cells of the mature embryo sac, located at the end opposite the micropyle.
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The pollen-bearing portion of a stamen.
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The floral whorl that comprises the stamens.
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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.
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A slender column of tissue that arises from the top of the ovary and through which the pollen tube grows.
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The region of a carpel that serves as a receptive surface for pollen grains and on which they germinate.
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Pertaining to a flower having stamens but no functional carpels.
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The part of the flower producing the pollen, composed of anther and filament.
- 28.
The tough substance of which the exine, or outer wall, of spores and pollen grains is composed; a cyclic alcohol highly resistant to decay.
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One of the outermost flower structures, a unit of the calyx, usually enclose the other flower parts in the bud.
- 30.
The part of the axis of a flower stalk that bears the floral organs.
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The result of the fusion of a sperm nucleus and the two polar nuclei.
- 32.
The transfer of pollen from an anther to a stigma.
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A cavity in the anther that contains the pollen grains.
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Two nuclei, one derived from each end of the embryo sac, which become centrally located; they fuse with a male nucleus to form the primary endosperm nucleus.
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The manner of ovule attachment within the ovary.
- 36.
The part of the ovary wall to which the ovules or seeds are attached.
- 37.
A term sometimes used to refer to an individual carpel or a group of fused carpels.
- 38.
A flower part, usually conspicuously colored; one of the units of a corolla.
- 39.
A form of floral organizations in which the sepals, petals, and stamens are attached to the margin of a cup-shaped extension of the receptacle; superficially, the sepals, petals, and stamens appear to be attached to the ovary.
- 40.
The fruit wall, which develops from the mature ovary wall.
- 41.
The petals and sepals taken together.
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The stalk of an inflorescence or of a solitary flower.
- 43.
The stalk of an individual flower in an inflorescence.
- 44.
The inner wall layer of a spore or pollen grain.
- 45.
Group that contains the Bryophytes, Fungi, & Algae.
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Group that includes the seed producers and where pollination is a must.
- 47.
Phylum that makes up the angiosperms.
- 48.
General term for a flower with both stamens and carpels(bisexual).
- 49.
General term for a flower that lacks either stamens or carpels(unisexual).
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Dec 31, 2012Quiz Edited by
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Apr 05, 2009Quiz Created by
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