Bio 242 Ch 30
Order by
17 terms
Terms | Definitions |
|---|---|
 double fertilization | one sperm fertilizes the egg, forming a diploid zygote, other sperm fuses with two nuclei in the large central cell of the female gametophyte producing a tiploid cell; unique to angiosperms. |
| flower | angiosperm structure specialized for sexual reproduction |
| sepals | at the base of the flower; usually green; enclose the flower before it opens |
| petals | brightly colored; aid in attracting pollinators |
| stamens | produce microspores that develop into pollen grains containing male gametophytes |
| filament | stalk of stamen |
| anther | terminal sac in stamen where pollen in produced |
| carpels | make megaspores and their products; female gametophytes |
| stigma | structure at the tip of the carpel that receives pollen |
| style | leads from the stigma to the ovary |
| ovary | structure at the base of the carpel; contains one or more ovules |
| ovule | develops into a seed if fertilized |
| cotyledons | seed leaves in the embryo |
| monocots | species of angiosperms with one cotyledon |
| dicots | species of angiosperm with thwo cotyledon |
| basal angiosperms | appear to include the flowering plants belonging to the oldest lineages |
| magnoliids | angiosperms that evolved later |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.