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33 Cards in this Set
- Front
- Back
Receptacle |
עוקץ הפרח. flowers are the reproductive shoots of the angiosperm sporophyte; they attach to a part of the stem called "Receptacle" |
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Stamens |
אבקן one of the four floral organs, the male part of a flower, a reproductive organ |
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Carpels |
עלה השחלה one of the four floral organs, the female part of a flower, a reproductive organ |
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Sepals |
עלי גביע one of the four floral organs, sterile-S |
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Petals |
עלי כותרת one of the four floral organs, sterile |
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Anther |
מאבק a filament top in the stamen with pollen sacs that produce pollen |
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Style |
עמוד העלי in the carpel, long, and with a stigma on which pollen may land |
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Stigma |
צלקת in the style which is in the carpel and where pollen can land |
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Ovary |
השחלה at the base of the style, contains one or more ovules |
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Ovules |
ביציות in the ovary which is at the base of the style |
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Complete flowers |
contain all 4 floral organs |
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Incomplete flowers |
lack one or more floral organs, for example stamens or carpels |
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Inflorescences |
תפרחת clusters of flowers |
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Pollen tube |
produced by pollen grain and grows down into the ovary and discharges 2 sperm cells near the embryo sac. |
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Embryo sac |
also called female gametophyte, develops within the ovule |
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Coevolution |
evolution of interacting species in response to changes in each other |
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Double fertilization |
results from the discharge of 2 sperm from the pollen tube into the embryo sac |
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Endosperm (3n) |
triploid food-storing, rises from the sperm that combines with the polar nuclei |
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Seed coat |
protective, hard and the embryo and its food supply are enclosed by this |
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Hypocotyl |
below the cotyledons the embryonic axis is called "Hypocotyl" and terminates in the radicle |
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Radicle |
embryonic root |
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Epicotyl |
above the cotyledons the embryonic axis is called "Epicotyl" |
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Coleoptile |
The covering of the young shoot of the embryo of a grass seed. |
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Coleorhiza |
The covering ofthe young root of the embryo of a grass seed. |
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Imbibition |
ספיחה the uptake of water due to low water potential of the dry seed |
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fruit kinds |
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suspensor |
The suspensor helps in transferring nutrientsto the embryo from the parent plant and, in some species,from the endosperm. |
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cotyledons |
the seed leaves |
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fragmentation |
A means of asexual reproductionwhereby a single parent breaks into partsthat regenerate into whole new individuals. |
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apomixis |
The ability of someplant species to reproduce asexually throughseeds without fertilization by a male gamete. |
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dioecious |
דו ביתי havingthe male and female reproductive parts on differentindividuals of the same species. |
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Monoecious |
חד ביתי Both type of flowers on the plant |
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Perfect/imperfect flower |
Perfect- bisexual -A perfect flower contains bothstamens and a pistil Imperfect-unisexual-containsonly one type of sex organ |