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Formation of Seed Video Lecture | Science Class 7

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FAQs on Formation of Seed Video Lecture - Science Class 7

1. What is a seed?
Ans. A seed is the reproductive structure of a flowering plant that contains the embryo, which can develop into a new plant under suitable conditions.
2. How are seeds formed?
Ans. Seeds are formed through a process called pollination. During this process, pollen from the male part of the flower (stamen) is transferred to the female part (pistil), which contains the ovary. Fertilization occurs, and the ovary develops into a fruit, with the seeds forming inside.
3. What are the different parts of a seed?
Ans. A typical seed consists of three main parts: the seed coat, the embryo, and the endosperm. The seed coat is the outer protective covering, the embryo is the young plant inside the seed, and the endosperm provides nutrients for the developing embryo.
4. How do seeds germinate?
Ans. Germination is the process by which a seed starts to grow into a new plant. It requires suitable conditions such as water, oxygen, and favorable temperature. When the conditions are right, the seed absorbs water, which triggers biochemical changes, leading to the growth of the embryo and the emergence of a new plant.
5. What are the factors that affect seed germination?
Ans. Several factors can affect seed germination, including the availability of water, oxygen, temperature, and light. Some seeds also require specific conditions, such as exposure to fire or the passage through an animal's digestive system, to break dormancy and germinate.
111 videos|246 docs|28 tests
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