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Chapter-1 Nutrition in Plants. - Class 7 PDF Download

Chapter-1 Nutrition in Plants. - Class 7


Chapter-1 Nutrition in Plants. - Class 7


Chapter-1 Nutrition in Plants. - Class 7

Chapter-1 Nutrition in Plants. - Class 7


Chapter-1 Nutrition in Plants. - Class 7

Chapter-1 Nutrition in Plants. - Class 7


Chapter-1 Nutrition in Plants. - Class 7

Chapter-1 Nutrition in Plants. - Class 7

Chapter-1 Nutrition in Plants. - Class 7


Chapter-1 Nutrition in Plants. - Class 7

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1. What is nutrition in plants?
Ans. Nutrition in plants is the process by which plants obtain and utilize essential nutrients for their growth and development. It involves the intake of water, minerals, and gases from the environment, as well as the synthesis of food through the process of photosynthesis.
2. How do plants obtain nutrition?
Ans. Plants obtain nutrition through two main processes: photosynthesis and absorption. During photosynthesis, plants use sunlight, carbon dioxide, and water to produce glucose and oxygen. They absorb minerals and water from the soil through their roots. These nutrients are transported to various parts of the plant for growth and metabolism.
3. What are the essential nutrients required by plants?
Ans. Plants require various essential nutrients for their growth and development. These include macronutrients such as nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur, which are needed in relatively large quantities. They also require micronutrients such as iron, manganese, zinc, copper, molybdenum, and boron, which are needed in smaller amounts.
4. What is the role of photosynthesis in plant nutrition?
Ans. Photosynthesis is a vital process in plant nutrition. It allows plants to convert sunlight, carbon dioxide, and water into glucose and oxygen. Glucose is the primary source of energy for plants, which is used for various metabolic activities. Oxygen, produced as a byproduct of photosynthesis, is released into the atmosphere.
5. How do plants absorb nutrients from the soil?
Ans. Plants absorb nutrients from the soil through their root system. The roots have tiny hair-like structures called root hairs, which increase the surface area for nutrient absorption. Water and dissolved minerals enter the roots through osmosis and active transport. These nutrients are then transported to the rest of the plant through the xylem and phloem tissues.
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