Parts of a Flower
The male part of the flower is the...
stamen
What do we call something that carries pollen from one flower to another flower?
A pollinator
How does the life cycle of a plant begin?
As a seed.
What is seed dispersal?
How seeds spread away from the parent plant.
What do most nonflowering plants use to make new plants?
They use spores.
The female part of the flower is the...
Carpel
What is pollination?
The movement of pollen from the anther of a flower to the stigma of another flower.
What conditions are needed for a seed to germinate?
the right temperature, water, and space.
Why is seed dispersal important?
Seeds need space away from the parent plant to have the space, sunlight, water, and nutrients they need to grow
What nonflowering plants still use seeds?
Conifers - cone bearing trees and plants.
The stamen has the __A_ and the _B__, it produces _C__
A/B - anther and filament
C - Pollen
What are 4 things that can act as pollinators?
Birds, insects, wind, water, bats, people
What is the outer layer of the seed called that cracks open during germination?
The seed coat.
Wind, Animals, Water, and Bursting
What are examples of nonflowering plants?
Ferns, moss, conifers, etc.
What are the parts of the carpel and what does it do?
Stigma and ovary
It catches pollen and stores the eggs
What attracts insects to the flower?
The colorful petals, smell and nectar
Do seeds need to germinate right away or can they stay as seeds for a long time?
Bonus: How old was the oldest seed known to still germinate?
No, seed can last a long time before they germinate.
Bonus: A waterlily found in China was over 1300 years old before it germinated.
What are two ways animals help disperse seeds?
The fruit has spines and sticks to their fur. Animals will eat the fruit and drop the seeds away from the parent plant.
What plants were on our planet first, flowering or nonflowering plants?
Nonflowering plants
What is the job of the flower and what does it become?
To make seeds. It becomes the fruit.
How are cross-pollination and self pollination different?
Cross pollination means pollen from one plant needs to get to the flower of another plant.
Self-pollination is when a plant has a perfect flower and the plant can pollinate itself.
What are the steps to seed germination?
First
Next
Then
Finally
First, the seed absorbs water and swells up.
Next, the seed coat cracks and the root begins to grow out of the seed.
Then, the embryo sends out its first shoot.
Finally, the shoot breaks through the soil and becomes a seedling with its first leaves
What are the traits of a seed that is dispersed by wind?
What did we conclude from our seed dispersal experiment comparing bursting to gravity
Seeds dispersed by wind are light weight and either have a fluffy parachute or wing shape.
We can conclude that bursting was a better method of dispersal because the seeds traveled much further.
Which type of plant (flowering or nonflowering) attracts more insects? Why?
Flowering plants because they have nectar that insects eat, colorful petals and odors that attract them.