| A | B |
|---|
| non-seed plants | do not produce seeds;need water in order to reproduce |
| seed plants | produce seeds;do not need water in order to reproduce |
| types of non-seed plants | mosses and ferns |
| two types of seed plants | gymnosperms and angiosperms |
| gymnosperms | form seeds in cones |
| angiosperms | form seeds in flowers |
| alternation of generations | life cycle involving haploid and diploid plant forms |
| sporophyte | diploid plant form; produces spores |
| gametophyte | haploid plant form; produces gametes |
| dominant generation | the plant form that is larger and more obvious; usually the sporophyte |
| plant in which gametophyte is dominant | mosses |
| embryo, food supply, seed coat | parts of seed |
| epicotyl, hypocotyl, radicle | parts of embryo |
| epicotyl | forms leaves |
| hypocotyl | forms lower stem |
| radicle | forms root;is closest to micropyle and is first part of embryo to emerge from seed |
| pedicel | supports flower and connects it to stem |
| receptacle | large end of pedicel to which flower is attached |
| sepals | leaflike structures forming a ring around base of flower |
| calyx | complete circle of sepals |
| corolla | complete circle of petals |
| petals | white or brightly colored leaves above sepals |
| stamen | male reproductive organ of angiosperm |
| pistil | female reproductive organ of angiosperm |
| anther | part of stamen;produces pollen |
| filament | part of stamen; supports anther |
| stigma | sticky top of pistil |
| style | middle part, or "neck" of pistil |
| ovary | at base of pistil;contains ovules;becomes fruit |
| ovule | contains eggs;becomes seed |
| pollen grain | male gametophyte of angiosperm |
| pollination | transfer of pollen grain from anther to stigma |
| self-pollination | pollen is transferred to stigma of same flower |
| cross-pollination | pollen is transferred to stigma of different flower |
| fertilization in angiosperms | pollen tube forms, two sperm move down tube to ovule;one sperm fertilizes egg, one sperm fertilizes polar body to form endosperm |
| simple fruit | develoops from single ovary; EX:cherries,tomatoes |
| aggregate fruit | fruit develops from several ovaries within one flower;EX:strawberries,raspberries |
| multiple fruit | fruit develops from the ovaries of many separate flowers which fuse together on one stem; EX:pineapple |
| cotyledon | "seed leaf" stores nutrients for embryo |
| monocot | plant whose seeds contain one cotyledon only EX:corn |
| dicot | plant whose seeds contain two cotyledons EX:lima bean |
| tube cell | part of pollen grain that forms the pollen tube |
| generative cell | part of pollen grain that divides into two sperm |
| micropyle | small hole in ovule through which sperm enter. Remains as hole in seed coat to allow water to enter |
