Plant Diversity 2 Flashcards
What characteristics are common to all seed plants?
Reduced gametophytes heterospory ovules pollen
Why are seeds important?
They enabled their bearers to become the most dominant producers in the terrestrial ecosystem.
Where do the gametophytes of seed plants develop?
Within the walls of the spores.
Where are megaspores located?
In the megasporangia of the parent sporophyte
Gametophyte sporophyte relationship?
WHat is special about gymnosperm seeds?
They are naked, typically on cones.
Life cycle of gymnosperm? think then look at picture.
What is this?
Pollen cone (staminate) w/ pollen grains (microspores)
What is this?
Gymnosperm ovule
What plant forms floers and fruits?
angiosperms.
What is the flower?
sexual reproduction organ
Flower structures?
What develops into the fruit?
What develops into the seed?
Ovary - fruit
Ovule - seed
Angiosperm life cycle? Think then look.
Apple vs. Tomato fruit structres.
Apple is accessory fruit
tomato is simple fruit
