Angiosperms

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1. 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.

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Angiosperms Quizzes & Trivia

A fill in the blank quiz over angiosperms.

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2. The part of the flower producing the pollen, composed of anther and filament.

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3. 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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4. One of the outermost flower structures, a unit of the calyx, usually enclose the other flower parts in the bud.

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5. The part of the axis of a flower stalk that bears the floral organs.

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6. The result of the fusion of a sperm nucleus and the two polar nuclei.

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7. The transfer of pollen from an anther to a stigma.

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8. A cavity in the anther that contains the pollen grains.

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9. 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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10. The manner of ovule attachment within the ovary.

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11. The part of the ovary wall to which the ovules or seeds are attached.

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12. A term sometimes used to refer to an individual carpel or a group of fused carpels.

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13. A flower part, usually conspicuously colored; one of the units of a corolla.

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14. Pertaining to a flower having stamens but no functional carpels.

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15. The fruit wall, which develops from the mature ovary wall.

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16. The petals and sepals taken together.

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17. The stalk of an inflorescence or of a solitary flower.

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18. The stalk of an individual flower in an inflorescence.

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19. The inner wall layer of a spore or pollen grain.

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20. Group that contains the Bryophytes, Fungi, & Algae.

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21. Group that includes the seed producers and where pollination is a must.

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22. Phylum that makes up the angiosperms.

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23. General term for a flower with both stamens and carpels(bisexual).

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24. General term for a flower that lacks either stamens or carpels(unisexual).

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25. A cavity within a sporangium or a cavity of the ovary in which ovules occur.

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26. The region of an ovule or seed where the funiculus unites with the integuments and the nucellus.

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27. A cavity within a sporangium or a cavity of the ovary in which ovules occur.

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28. A flower cluster, with a definite arrangement of flowers.

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29. The stalk of the ovule.

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30. The stalk of a stamen.

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31. The outer wall layer of a spore or pollen grain.

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32. A pattern of floral organization in which the sepals, petals, and stamens apparently grow from the top of the ovary.

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33. 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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34. 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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35. The egg cell and synergids located at the micropylar end of the female gametophyte, or embryo sac, of angiosperms.

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36. 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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37. The opening of an anther, fruit, or other structure, which permits the escape of reproductive bodies contained within.

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38. The petals collectively.

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39. Having the anthers and carpels produced in separate flowers on the same individual.

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40. Relatively large vacuolate cells in a subsurface position in apical meristems of shoots.

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41. Pertaining to a flower with one or more carpels but no functional stamens; also called a pistillate.

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42. One of the members of the gynoecium, or inner floral whorl; encloses one or more ovules.

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43. The sepals collectively; the outermost flower whorl.

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44. Three cells of the mature embryo sac, located at the end opposite the micropyle.

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45. The pollen-bearing portion of a stamen.

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46. The floral whorl that comprises the stamens.

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47. 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.

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48. Nutritive tissue in the sporangium, particularly an anther.

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49. A slender column of tissue that arises from the top of the ovary and through which the pollen tube grows.

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50. The region of a carpel that serves as a receptive surface for pollen grains and on which they germinate.

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A form of floral organizations in which the sepals, petals, and...
The part of the flower producing the pollen, composed of anther and...
The tough substance of which the exine, or outer wall, of spores and...
One of the outermost flower structures, a unit of the calyx, usually...
The part of the axis of a flower stalk that bears the floral organs.
The result of the fusion of a sperm nucleus and the two polar nuclei.
The transfer of pollen from an anther to a stigma.
A cavity in the anther that contains the pollen grains.
Two nuclei, one derived from each end of the embryo sac, which become...
The manner of ovule attachment within the ovary.
The part of the ovary wall to which the ovules or seeds are attached.
A term sometimes used to refer to an individual carpel or a group of...
A flower part, usually conspicuously colored; one of the units of a...
Pertaining to a flower having stamens but no functional carpels.
The fruit wall, which develops from the mature ovary wall.
The petals and sepals taken together.
The stalk of an inflorescence or of a solitary flower.
The stalk of an individual flower in an inflorescence.
The inner wall layer of a spore or pollen grain.
Group that contains the Bryophytes, Fungi, & Algae.
Group that includes the seed producers and where pollination is a...
Phylum that makes up the angiosperms.
General term for a flower with both stamens and carpels(bisexual).
General term for a flower that lacks either stamens or...
A cavity within a sporangium or a cavity of the ovary in which ovules...
The region of an ovule or seed where the funiculus unites with the...
A cavity within a sporangium or a cavity of the ovary in which ovules...
A flower cluster, with a definite arrangement of flowers.
The stalk of the ovule.
The stalk of a stamen.
The outer wall layer of a spore or pollen grain.
A pattern of floral organization in which the sepals, petals, and...
A tissue, containing stored food, that develops from the union of a...
The female gametophyte of angiosperms, generally an eight-nucleate,...
The egg cell and synergids located at the micropylar end of the female...
The fusion of the egg and sperm and the simultaneous fusion of the...
The opening of an anther, fruit, or other structure, which permits the...
The petals collectively.
Having the anthers and carpels produced in separate flowers on the...
Relatively large vacuolate cells in a subsurface position in apical...
Pertaining to a flower with one or more carpels but no functional...
One of the members of the gynoecium, or inner floral whorl; encloses...
The sepals collectively; the outermost flower whorl.
Three cells of the mature embryo sac, located at the end opposite the...
The pollen-bearing portion of a stamen.
The floral whorl that comprises the stamens.
In angiosperms, the fusion of the second male gamete, or sperm, with...
Nutritive tissue in the sporangium, particularly an anther.
A slender column of tissue that arises from the top of the ovary and...
The region of a carpel that serves as a receptive surface for pollen...
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