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General Bio Lab #4
Biology Lab exam #4 over seed bearing and seedless plants
| Question | Answer |
|---|---|
| Simple Fruits | Fleshy & Dry |
| Fleshy Fruits | Drupes, Berries, & Pomes |
| Drupe | One to several carpels, but each carpel has one seed; the Exocarp forms a hard, stony pit. Examples: Peaches, cherries, plums, almonds, and olives |
| Types of berries | True berry, False berry, Pepo, & Hesperidium |
| True berry | flesh is soft throughout the fruit; exocarp, mesocarp, and endocarp are all fleshy. Examples: Tomatoes, peppers, and grapes |
| False berry | both the floral tube and the ovary wall are fleshy at maturity Examples: Banana and cranberry |
| Pepo | similar to a berry but wit a thick outer rind Examples: watermelon, pumpkins, cantaloupes, cucumbers and squash |
| Hesperidium | Leathery rinds containing oils Examples: All citrus fruits (limes & oranges) |
| Pome | Fleshly fruit whose flesh comes from an enlarged floral tube and receptacle. Examples: Apples and pears |
| Dry Fruits | Dehiscent & Indehiscent |
| Dehiscent | Follicle, Legume, Siliques, & Capsule |
| Indehiscent | Achene, Nuts, Grain, Samara, Schizocarp |
| Follicle | Dry fruit from a single carpel that splits down one side along a seam. Examples: Milkweeds, Columbines, Magnolias, and Peonies |
| Legume | Splits along 2 seams Examples: Pea family, and Peanuts |
| Silique | 2 carpels separate at maturity leaving a thin partition between. Examples: Mustard family |
| Capsule | 2 or more fused carpels; split in various ways. Examples: Irises, orchids, poppies, snapdragons, and cotton |
| Achene | Small simple dry fruit; single seed attached to the fruit wall at a single point. Example: Sunflower, Buckwheat |
| Nuts | Pericarp becomes hard throughout Examples: Chestnuts, acorns, walnuts, and hickories |
| Grains | Seed is completely fused to the pericarp. Examples: Corn, wheat, oats, or grass family |
| Samaras | Like an achene but with a wing around the seed Examples: Elm and Ash trees |
| Schizocarp | 2 or more united carpels that split at maturity Example: Celery |
| Aggregate Fruits | Formed from a single flower with multiple carpels; Each carpel develops into a fruitlet; fruitlets mature on a single receptacle. Examples: Raspberries, Blackberries, Strawberries, and Magnolia fruits |
| Multiple fruit | When the fruitlets of individual flowers in a single inflorescence fuse together. Examples: Pineapples, Figs, Osage Orange, Jack Fruit, Bread fruit, and Sweet Gum fruit. |