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Unit 3 Plants
| Question | Answer |
|---|---|
| How to use a dichotomous key to identify organisms? | Divided into two parts, the key always presents two mutually choices. |
| branching logic based on characteristics (wings, legs, scales, etc.)? | Observable characteristics logically narrow down possibilities until one remains. |
| leaves | photosynthesis, food production |
| roots | Anchor, absorbs water, stores food |
| stems | support leaves, flowers, fruits, transports water/nutrients. |
| flowers | reproductive structure, sexual reproduction, attracts pollinators. |
| fruit | protects seeds, aids |
| seeds | contains embryonic plant, used for reproduction |
| adverititious roots: | appear on above ground parts, help plants climb/spread (creeper, poison ivy.) |
| trap roots: | grow straight down, thick and heavy (carrots, beets, radishes.) Advantage: survive droughts Disadvantage: not stabilizing to soil |
| Fibrous roots: | thin, hairlike, shallow, spread sideways (grasses, corn.) Advantage: stabilize soil Disadvantage: dry out quickly |
| woody stems: | tough, covered with bark, survive winter |
| Herbaceous stems: | succulent/soft, usually green, Connor survive the winter |
| Bulbs: | shortened stems with scales (onions) |
| Corms: | thickened, compact, fleshly (gladiola) |
| Rhizomes: | thick stems below ground, give rise to new plants (iris) |
| Tubers: | thickened underground stems that store carbohydrates (potatoes) |
| Plant classification: | Vascular vs. non-vascular plants, Gymnosperms vs. angiosperms, Monocots vs. dicots |
| Plant life cycles: | Perennial plants, Annual plants, (Possibly beiennial plants) |
| Diagram Idenification: | Focus on roots, stems, leaves, reproductive parts (flowers, fruit, seeds) |
Created by:
DanikaL