Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
|
The reproduction part of a gymnosperm |
Cones |
|
|
Specialized structure for reproduction in angiosperms |
Flowers |
|
|
Gametophyte |
Haploid and produces gametes (sex cells) |
|
|
Sporophyte |
Diploid and produces spores |
|
|
Gametophyte plants are... |
Produce both male and female gametes |
|
|
Zygote |
Female and make gamete join to make a diploid cell |
|
|
Pollen cones |
Male; produce male gametophytes= pollen grain |
|
|
Seed/Ovulate Cones |
Female gametophytes= seed or ovule |
|
|
The two year life cycle of pollen cones: |
In spring- release pollen(pollen cones) |
|
|
Pollination? |
Transfer of the pollen from male to female |
|
|
Does pollination occur before fertilization? |
Yes |
|
|
How does a cone get fertilized? |
Grows a pollen tube that goes into ovule and creates a diploid zygote |
|
|
How do gymnosperms most likely do seed dispersal? |
Wind-pollination |
|
|
Where does reproduction occur in an angiosperm? |
Flowers |
|
|
What is the male reproduction system in a flower? |
Stamen |
|
|
What is the anther? |
Male and produces pollen grains |
|
|
What's the ovary? |
Female and holds eggs or ovules |
|
|
How is pollination best done for angiosperms? |
Insects and animals |
|
|
The fertilization for an angiosperm is... |
Pollen grain lands on stigma, grows pollen tube into style,ovary, and ovule |
|
|
During double fertilization what does the first sperm do? |
Sperm and egg join to make a diploid zygote |
|
|
What does the second sperm do in double fertilization? |
1 sperm is going to join a 2n nucleus to become a 3n endosperm ( the good for the embryo) |
|
|
What's a sepal? |
Outermost specialized leaves and are sterile |
|
|
What are petals? |
Leaves underneath the sepals |
|
|
What does the anther do? |
Holds pollen ( haploid= male sperm) |
|
|
What does the filament do? |
It's the supporting structure |
|
|
What does the pistol produce? |
Female gametophyte |
|
|
What does the ovary do? |
Holds eggs or ovules (find at base) |
|
|
What's the style? |
Supporting structure |
|
|
What does the stigma do? |
It's the place where the pollen is going to land |
|
|
What happens when the angiosperm seed matures? |
It turns into a fruit |
|
|
What's a fruit? |
It's a ripened ovary containing the seeds |
|
|
How are the seeds dispersed? |
Animals, wind, or water |
|
|
What happens during seed dormancy? |
The embryo is alive but it's not growing until conditions are right |
|
|
What's seed germination? |
The early growth stages of a seed |
