AP Bio Chapter 17
Order by
38 terms
Terms | Definitions |
|---|---|
 absorption | The uptake of small nutrient molecules by an organism's own body |
| alternation of generations | life cycle in which there is both a multicellular diploid form, the sporophyte, and a multicellular haploid form, the gametophyte |
| angiosperm | A flowering plant, which forms seeds inside a protective chamber called an ovary |
| anther | The terminal pollen sac of a stamen |
| bryophytes | a nonvascular plant that inhabits the land but lacks many of the terrestrial adaptations of vascular plants |
| carpel | The female reproductive organ of a flower, consisting of the stigma, style, and ovary |
| charophyceans | green algal group that shares two ultrastructural features with land plants |
| conifer | gymnosperm whose reproductive structure is the cone |
| cuticle | waxy covering on the surface of stems and leaves that acts as an adaptation to prevent desiccation in terrestrial plants |
| dikaryotic phase | phase in which each cell has two nuclei from two different parents, with the nuclei not yet fused |
| embryophyte | Another name for land plants |
| flower | a short stem with four sets of modified leaves, bearing structures that function in sexual reproduction |
| fossil fuels | Energy deposits formed from the remains of extinct organisms |
| fruit | mature ovary of a flower that protects dormant seeds and aids in their dispersal |
| fruiting body | Also known as a mushroom, it consists of tightly-packed dikaryotic hyphae |
| gametangium | reproductive organ of bryophytes, consisting of the male antheridium and female archegonium |
| gymnosperm | A vascular plant that bears naked seeds—seeds not enclosed in specialized chambers |
| hypha | A filament that collectively makes up the body of a fungus |
| lichen | mutualistic collective formed by the symbiotic association between a fungus and a photosynthetic alga |
| mating types | discrete kinds of a mushroom's haploid mycelia that contain distinct nuclei, and only certain types are sexually compatible |
| mycelium | densely branched network of hyphae in a fungus |
| mycosis | general term for a fungal infection |
| ovary | In flowers, the portion of a carpel in which the egg-containing ovules develop |
| ovule | structure that develops in the plant ovary and contains the female gametophyte |
| petal | modified leaf of a flowering plant, often colorful parts of a flower that advertise it to insects and other pollinators |
| phloem | portion of the vascular system in plants consisting cells that transport sugar and other organic nutrients throughout the plant |
| pollen grains | structures that contain the immature male gametophytes |
| pollination | placement of pollen onto the stigma of a carpel by wind or animal carriers, a prerequisite to fertilization |
| seed | adaptation for terrestrial plants consisting of an embryo packaged along with a store of food within a resistant coat |
| sepal | whorl of modified leaves in angiosperms that encloses and protects the flower bud before it opens |
| sporangium | A capsule in fungi and plants in which meiosis occurs and haploid spores develop |
| spore | a meiotically produced haploid cell that divides mitotically, generating a gametophyte, without fusing with another cell |
| stamen | pollen-producing male reproductive organ of a flower, consisting of an anther and filament |
| stigma | sticky part of a flower's carpel, which traps pollen grains |
| stomata | microscopic pore surrounded by guard cells in the epidermis of leaves and stems that allows gas exchange |
| vascular plants | all modern plant species except the mosses and their relatives |
| vascular tissue | Plant tissue consisting of cells joined into tubes that transport water and nutrients throughout the plant body |
| xylem | nonliving portion of the vascular system in plants that carries water and minerals from the roots to the rest of the plant |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.