Download The Wonder of Flowering Plants KEY 9 Reading

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Lesson 9 Reading Questions
The Wonder of Flowering Plants – pg. 116-119
1. What type of organ is a flower?
A reproductive organ
2. What is the male reproductive structure on a plant?
Stamen
3. What parts make up this structure and what do they do?
Anther-produces pollen
Filament-supports anther.
4. What is the female reproductive structure on a plant?
Pistil
5. What parts make up this structure and what do they do?
Stigma-collects pollen style-supports stigma ovary-holds ovules
6. What is the difference between a “perfect” and an “imperfect” flower?
Perfect-female and male parts
Imperfect-female or male part
7. What is pollination?
When the pollen from an anther contacts the stigma.
8. What are the two types of pollination and how do they differ?
Self-pollination-pollen not transferred (self-pollinated)
Cross pollination-pollen transferred from different flower.
9. How do plants get pollen? Explain the method for each type of pollination.
Self-falls into stigma by gravity, wind, or water.
Cross – a pollinator transfers the pollen (insects, birds, rodents, wind.)
10. What is fertilization?
When a sperm cell meets an egg cell
11. How is the endosperm produced?
Sperm unite with nuclei in egg
12. What part of the original flower eventually becomes a fruit?
Ovary
13. What is the function of the fruit?
To protect and disperse the seeds.
14. Why do flowers need to adapt in order to enhance pollination?
They are rooted and can’t move around
15. How are flowers adapted to encourage pollination?
Scent, bright colors, and location
16. Draw and label a perfect flower (p. 108). Label the following: petal, sepal, stigma,
style, anther, filament, stamen, ovary, and stem.