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Questions and Answers
What is the main function of sepals in a flower?
What is the main function of sepals in a flower?
What is the function of the stamen in a flower?
What is the function of the stamen in a flower?
Where are carpels located in a flower?
Where are carpels located in a flower?
What is the role of petals in a flower?
What is the role of petals in a flower?
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What makes sporophyte generation dominant in flowering plants?
What makes sporophyte generation dominant in flowering plants?
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Study Notes
Sepals
- Sepals are leaf-like structures that enclose and protect the developing bud before the flower blooms.
- They typically are green and resemble leaves.
- They often fall off once the flower opens, but can sometimes remain as the flower develops into a fruit.
Stamen
- The stamen is the male reproductive organ of a flower.
- It consists of an anther and a filament.
- The anther produces pollen grains, which contain the male gametes.
- The filament supports the anther.
Carpel
- The carpel is the female reproductive organ of a flower.
- It is located in the center of the flower, often surrounded by the petals and stamen.
- It consists of three parts:
- The ovary: The base of the carpel, where the ovules are located.
- The style: A stalk that connects the ovary to the stigma.
- The stigma: The sticky tip of the style, where pollen grains land.
Petals
- Petals are modified leaves that are often brightly colored or have a unique shape.
- Their main function is to attract pollinators.
- The color and scent of petals help to attract insects, birds, or other animals that will transfer pollen to the stigma of another flower.
What makes the sporophyte generation dominant in flowering plants?
- The sporophyte is the dominant generation in flowering plants.
- Flowering plants are characterized by their flowers, which produce seeds.
- The sporophyte produces the flower, which contains both the male (stamen) and female (carpel) reproductive organs.
- The sporophyte generation is responsible for producing spores, which develop into the gametophytes.
- In flowering plants, the gametophytes are reduced in size and develop directly within the flower.
- This dominant sporophyte generation is considered a key evolutionary adaptation that contributed to the success of flowering plants.
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Description
Test your knowledge of the typical life cycle of flowering plants, reproductive organs, pollen grain development, ovule and embryo sac formation, the process of pollination, and double fertilization.
