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Nutrition in Plants - 2 Video Lecture | Science Class 7

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FAQs on Nutrition in Plants - 2 Video Lecture - Science Class 7

1. What is the process of nutrition in plants?
Ans. Plants obtain nutrition through the process of photosynthesis. They use sunlight, carbon dioxide, and water to produce glucose and oxygen. The glucose is then converted into energy for the plant's growth and development.
2. How do plants absorb nutrients from the soil?
Ans. Plants absorb nutrients from the soil through their roots. The root hairs present on the roots increase the surface area for absorption. The nutrients dissolve in water and enter the root hairs through osmosis. From there, they are transported to different parts of the plant for utilization.
3. Why do plants need nutrients to survive?
Ans. Nutrients are essential for the growth and survival of plants. They provide the necessary elements for the synthesis of proteins, enzymes, and other important compounds. Nutrients also play a crucial role in maintaining the plant's overall health, enabling it to produce flowers, fruits, and seeds.
4. What are the different types of nutrients required by plants?
Ans. Plants require two main types of nutrients - macronutrients and micronutrients. Macronutrients include elements such as nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur, which are required in large quantities. Micronutrients, on the other hand, are needed in smaller amounts and include elements like iron, manganese, zinc, copper, boron, and molybdenum.
5. How can plants obtain nutrients from sources other than the soil?
Ans. While plants primarily obtain nutrients from the soil, they can also absorb certain nutrients from other sources. For example, some plants can obtain nutrients by trapping and digesting insects, known as carnivorous plants. Additionally, some plants have symbiotic relationships with nitrogen-fixing bacteria, which help them acquire nitrogen from the air.
145 videos|326 docs|55 tests

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