Class 5 Exam > Class 5 Videos > Crash Course for Class 5 > Chapter 1: How seeds become plants?
Chapter 1: How seeds become plants? Video Lecture | Crash Course for Class 5
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FAQs on Chapter 1: How seeds become plants? Video Lecture - Crash Course for Class 5
| 1. How do seeds germinate and become plants? |  |
Ans. Seeds germinate and become plants through a process called germination. First, the seed absorbs water, which activates enzymes and triggers metabolic processes. Then, the seed coat breaks open, allowing the root to emerge and anchor the plant into the soil. The shoot also emerges and starts growing towards the light. As the shoot grows, leaves develop, allowing the plant to photosynthesize and produce food. This process continues until the seedling develops into a mature plant.
| 2. What are the factors that influence seed germination? | |
Ans. Several factors influence seed germination. The three main factors are water, oxygen, and temperature. Seeds need water to activate enzymes and start metabolic processes. Oxygen is required for respiration during germination. Temperature affects the speed of germination, with most seeds germinating best within a specific temperature range. Other factors such as light, soil quality, and seed dormancy also play a role in seed germination.
| 3. How long does it take for a seed to become a fully grown plant? | |
Ans. The time it takes for a seed to become a fully grown plant varies depending on the plant species. Some plants can germinate and grow within a few weeks, while others may take several months or even years. Factors such as environmental conditions, seed size, and genetic characteristics of the plant influence the growth rate. Additionally, plants have different life cycles, with annual plants completing their life cycle within a year, while perennial plants take multiple years to reach maturity.
| 4. Can all seeds become plants? | |
Ans. Not all seeds have the potential to become plants. Some seeds may be damaged or have genetic abnormalities that prevent germination and growth. Additionally, some seeds may require specific conditions or treatments to break dormancy and initiate germination. However, under suitable conditions, the majority of viable seeds have the ability to germinate and grow into plants.
| 5. How can we promote successful seed germination? | |
Ans. To promote successful seed germination, certain measures can be taken. Firstly, provide the seeds with proper moisture by watering them adequately but not excessively. Secondly, ensure that the seeds receive enough oxygen by planting them at an appropriate depth in the soil. Thirdly, maintain a suitable temperature range for the specific plant species. Some seeds may also benefit from scarification (scratching the seed coat) or stratification (exposing the seeds to cold temperatures) to break dormancy. Providing adequate light, nutrients, and protection from pests can further enhance seed germination and plant growth.
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Nov 23, 2024 Last updated |
Video Description: Chapter 1: How seeds become plants? for Class 5 2024 is part of Crash Course for Class 5 preparation.
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