Chapter 30 Flashcards
Layer of sporophyte tissue that contributes to the structure of an ovule of a seed plant.
Integument
A structure that developes within the ovary of a seed plant and contains the female gametophyte
Ovule
In seed plants, a structure consisting of the male gametophyte enclosed within a pollen wall
Pollen grain
The transfer of pollen to the part of a seed plant containing the ovules, a process required for fertilization.
Pollination
An extinct seedless vascular plant that may be ancestral to seed plants.
Progymnosperms
Member of the largest gymnosperm phylum. Most are cone-bearing trees, such as pines and firs
Conifers
A modified leaf in angiosperms that helps enclose and protect a flower bud before it opens.
Sepals
A modified leaf of a flowering plant; often colorful parts of a flower that advertise it to insects and other pollinators
Petals
In an angiosperm, the stalk portion of the stamen, the pollen-producing reproductive organ of the flower
Filament
The ovule producing reproductive organ of a flower, consisting of the stigma, style, and ovary.
Carpels
The sticky part of a flowers carpel, which traps pollen grains.
Stigma
The stalk of a flower’s carpel, with the ovary at the base and the stigma at the top.
Style
In flowers, the potion of a carpel in which the egg-containing ovules develope
Ovary
A mature ovary of a flower; protects dormant seeds and often aids in their dispersal
Fruit
The female gametophyte of angiosperms, formed from the growth and decision of the megaspore into a multicellular structure that typically has eight haploid nuclei.
Embryo sac
