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Formation of Seed Video Lecture | Science Class 7 (Old NCERT)
FAQs on Formation of Seed Video Lecture - Science Class 7 (Old NCERT)
| 1. What is the process of seed formation in plants? |  |
Ans.Seed formation in plants occurs after fertilization, where the ovule is transformed into a seed. This process involves several stages: pollination, fertilization, and the development of the zygote into a seed. The ovary then matures into a fruit, which protects the seed and aids in its dispersal.
| 2. What are the different parts of a seed? | |
Ans.A seed typically consists of three main parts: the seed coat (which protects the seed), the embryo (which develops into a new plant), and the endosperm (which provides nourishment to the embryo during germination). These components work together to ensure the seed can grow into a healthy plant.
| 3. How does seed dispersal occur after formation? | |
Ans.Seed dispersal occurs through various mechanisms once the seeds are formed. Common methods include wind, water, and animal movement. Some plants have special adaptations, such as wings or hooks, to facilitate this process and ensure that the seeds are spread away from the parent plant to reduce competition.
| 4. What factors influence seed germination? | |
Ans.Seed germination is influenced by several factors, including moisture, temperature, light, and oxygen availability. Each type of seed has specific requirements, and providing the right conditions is essential for successful germination and the growth of a new plant.
| 5. Why is seed formation important for plants and ecosystems? | |
Ans.Seed formation is crucial for plants as it ensures the continuation of their species, allowing them to reproduce and adapt to changing environments. Additionally, seeds play a vital role in ecosystems by providing food for various organisms and contributing to biodiversity, which helps maintain ecological balance.
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