Ap Bio Ch. 30
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Created by:
danielpyoung45 on October 28, 2010
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30 terms
Terms | Definitions |
|---|---|
 integuments | layers of sporophyte tissues |
| pollen grains | the structures that contain the male gametophyte of seed plants |
| pollination | the transfer of pollen to the part of the seed plant containing the ovulules a process that is prerequisite for fertilization |
| seed | embryo, food supply packaged within a protective coat |
| conifers | gymnosperm cone bearing plants. include trees such as pines firs and redwoods. |
| Progymnosperms | extinct seedless vascular plants that may be ancestral to seed plants |
| Flower | angiosperm structure specialized for sexual reproduction |
| Sepals | which are usually green and enclose the flower before it opens |
| petals | above the sepals. brightly colored and aid in the attraction of polinators |
| Stamens | the microscopic sporophylls produce microspores and that give rise to pollen grains containing male gametophytes |
| Filament | the stalk of a stamen |
| Anther | where pollen is produced |
| Carpels | are the megasporophylls which make megaspores and their products female gametophytes |
| Stigma | at the tip of the carpel receives the pollen |
| Style | narrow stalk of the carpel in a flower |
| Ovary | the portion of a carpel in which the egg-containing ovules develop |
| Receptacle | the base of the flower the part of the stem that is the site of attachment of the floral organs |
| Embryo Sac | female gamtophyte in the ovary of flowers |
| cross-pollination | which in angiosperms is the transer of pollen from an anther of a flower on one plant to the stigma of a flower on another plant of the same species. |
| micropyle | a pore in the integument of the ovule |
| double fertilization | ovule matures into a seed |
| Cotyledons | a seed leaf that stores food |
| Endosperms | the seeds of angiosprems have a supply of stored food at sometime during their development |
| Monocots | species with one cotyledons |
| dicots | species with two cotyledons |
| eudicots | Member of a clade consisting of the vast majority of flowering plants that have two embryonic seed leaves, or cotyledons. |
| basal angiosperms | Member of a clade of three early-diverging lineages of flowering plants. Examples are Amborella, water lilies, and star anise and its relatives. |
| magnoliids | a flowering plant clade that evolved later than basal angiosperms but before manocots and udicots. ex magnolias laurels |
| Fruit | typically consists of amature ovary |
| Pericarp | thickened wall of the fruit |
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