Parts of a Flower Quiz
Questions: 16 · 10 minutes
1. A student compares an anther with a stigma under magnification. Which statement correctly distinguishes their roles?
The anther produces pollen, while the stigma receives it
The anther contains ovules, while the stigma encloses them
The stigma produces pollen, while the anther receives it
The stigma supports the anther, while the anther supports the ovary
2. Following successful fertilization in a flowering plant, what do the ovules typically develop into?
Petals
Anthers
Seeds
Sepals
3. Which structure supports and positions the anther?
Ovule
Style
Filament
Sepal
4. Bright petals are removed from an insect-pollinated flower while its reproductive parts remain undamaged. Which function is most likely to be reduced?
Holding ovules inside the flower
Attracting insect pollinators
Receiving pollen on the stigma
Producing pollen grains
5. A botanist describes a flower as complete. Which four sets of structures must it contain?
Roots, stems, leaves, and flowers
Petals, anthers, pollen, and nectar
Sepals, petals, ovules, and fruit
Sepals, petals, stamens, and carpels
6. In a typical flower, where are pollen grains produced?
On the stigma
Inside the sepal
In the anther
Along the style
7. Which flower part usually protects the developing bud before it opens?
Ovule
Anther
Stigma
Sepal
8. A gardener removes a flower's anthers before its pollen matures but leaves the other structures intact. Which function is most directly prevented in that flower?
Producing its own pollen
Receiving pollen on its stigma
Protecting the unopened bud
Containing ovules in an ovary
9. A pollen tube reaches the female reproductive structures and releases sperm cells. Where does fertilization normally occur?
Inside the anther
Inside an ovule within the ovary
At the base of a sepal
On the surface of a petal
10. During a dissection, a student finds the expanded base where the flower's organs attach above the flower stalk. What is this structure?
Pedicel
Receptacle
Filament
Style
11. Which structure encloses the ovules before fertilization?
Stigma
Style
Ovary
Receptacle
12. Which part is specialized to receive pollen during pollination?
Stigma
Ovary
Filament
Receptacle
13. A lengthwise flower section reveals a swollen structure at the base of the pistil containing several small ovules. Which part is the swollen structure?
Sepal
Anther
Stigma
Ovary
14. A pollen grain has settled on the sticky tip of a flower's female reproductive structure. Where has it landed?
On the filament
On the ovule
On the receptacle
On the stigma
15. In a flower cluster, each individual flower is attached to the main axis by its own small stalk. What is that individual stalk called?
Receptacle
Pedicel
Peduncle
Filament
16. After a pollen grain germinates on the stigma, its pollen tube grows toward the ovary. Which part does the tube normally pass through?
Style
Filament
Sepal
Petal