1 Flowers are defined as the reproductive structures of the angiosperms and, as such, theyhave predictable parts with well-defined functions. Upon examining a typical nower(like Figure 5-1), most of what you observe is designed to attract pollinators to theflower-colorful petals, nutritious pollen or nectar, intense scents. This is critical asplants are sessile (cannot move) and, when biotic pollinators are used, they must arriveto be effective.FLORAL STRUCTUREAntherStamenFilamentStigmaPetal(all petals combinedare the corolla)CarpelStyleOvuleOvarySepal(all sepals combinedare the calyx)ReceptaclePedicelCHayden-McNeil, LLCFigure 5-1. The basic parts of a flower.Two petals and one stamen have been removed to show internal structure.When you separate a single flower from the plant on which it is growing, the stemportion is called the pedicel, and the point where the pedicel becomes the flower iscalled the receptacle. In most flowers, the receptacle is situated below up to four ringsof flower parts of one type. Each of these rings is called a whorl. The lowest two whorlsare nonreproductive-the sepals and the petals (together called the perianth). Theperianth attaches below the two reproductive whorls of stamens and carpels. PRE-LABORATORY QUESTIONS 51. Is the flower in Figure 5-1 hermaphroditic, monoecious, or dioecious? Explain howyou know. Is it a magnoliid, a monocot, or a eudicot? Explain how you know.2. Looking at the tree in Figure 5-3, which of the three groups in Table 5-1 wouldguess are most closely related?you3. Using Table 5-1, name an apomorphy in the magnoliids, monocots, or eudicots.Using just the information in the table can you name any synapomorphies? If so,name one and what groups share it. If not, explain why you cannot. Using just theinformation in the table can you name any symplesiomorphies? If so, name oneand what groups share it. If not, explain why you cannot.4. Using Figure 5-3 as a guide, draw a phylogeny of just the magnoliids, monocots,and eudicots. Make tick marks on your tree labeling the origin of three apomor-phies from Table 5-1 (there are more than three present). You may use any threeapomorphies, so long as you have tick marks on multiple branches of the tree.5. Bring your dissection kits! If you want to wear gloves while using the toluidine bluestain, you must provide them. If you have allergies to pollen, consider taking anantihistamine before lab this week.

Name: 1 Flowers are defined as the reproductive structures of the angiosperm
Uploaded: 2024-03-20T06:42:55.000Z
Channel: Bartleby
Description: 1 Flowers are defined as the reproductive structures of the angiosperms and, as such, theyhave predictable parts with well-defined functions. Upon examining a typical nower(like Figure 5-1), most of what you observe is designed to attract pollinators