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Plant
Biology-Plants
| Word/Question | Definition/Answer |
|---|---|
| Cuticle | A watertight covering around the above part of the plant. |
| Stomata | Pores that allow for gas exchange. |
| Guard Cells | Border each stoma and control its opening and closing. |
| Pollen Grain | A thick protective wall which contains the microgametophyte. |
| Gametophyte | Dominant in non-vascular plants. |
| Sporophyte | Dominant in vascular plants. |
| Hepatophyta | a.k.a. liverworts (non-vascular) |
| Anthocerophyta | a.k.a hornworts (non-vascular) |
| Byrophyta | a.k.a. mosses (non-vascular) |
| All non-vascular plants must live near | water |
| Archegonia produce | egg |
| Antheridia produce | sperm |
| In non-vascular plants, this is required for fertilization to take place. | Water |
| Phloem | soft walled cells that conduct carbs away from the leaves to the rest of the plant. (vascular tissue) |
| Xylem | hard walled cells that transport water and dissolved minerals from the root to the rest of the plant. |
| Meristems | zones of actively dividing cells |
| These are some examples of seedless vascular plants | ferns, horsetails, club mosses, whiskferns. |
| Rhizome | Roots and horizontal above ground stems that sporophytes have. |
| Fronds | Specialized divided leaves on the rhizomes. |
| Gymnosperm | "naked seed." These seeds do NOT develop within a fruit. |
| Angiosperm | "case seed." flowering plants, the seeds develop within a fruit. |
| Microgametophyte | produces sperm |
| Megagametophyte | produces eggs |
| Microspores | produce microgametophytes |
| Megaspores | produce the megagametophyte and develops within an ovule. |
| Pollination | transportation of pollen grains from the male reproductive structures to the female structures. |
| Seed | A sporophyte plant embryo surrounded by a seed coat. |
| Seed Coat | A protective coat that surrounds the seed. |
| Dispersion | Allows the offspring of plants to be dispersed to far away locations to find new habitats. |
| Gymnosperms include | ginko, cykads, gnetophytes |
| What are the 4 whorls? | calyx, corolla, androecium, and gynocium |
| Calyx | outermost of the flower with on or more SEPALS. (modified leaves) |
| Corolla | second whorl of the flower, has PETALS (which are highly pigmented). |
| Androecium | third whorl produces microgametophytes or pollen grains, made of STAMENS which are made of slender thread like filaments that are topped by an anther. |
| Gynocium | fourth and innermost whorl, houses the ovule in which megagametophyte develops;consists of pistils. |
| Ovary | develops the ovules |
Created by:
kbarzanji
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