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Nutrition in Plants - 1 Video Lecture | Science Class 7 (Old NCERT)

FAQs on Nutrition in Plants - 1 Video Lecture - Science Class 7 (Old NCERT)

1. What is the process of nutrition in plants?

Ans. The process of nutrition in plants is known as photosynthesis. During photosynthesis, plants use sunlight, carbon dioxide, and water to produce glucose (a type of sugar) and oxygen. This process takes place in the chloroplasts, specifically in the green pigment called chlorophyll.

2. How do plants obtain nutrients?

Ans. Plants obtain nutrients from the soil through their roots. The roots absorb water and minerals from the soil, which are essential for their growth and development. These nutrients are transported to different parts of the plant through the xylem and phloem vessels.

3. What are the different types of nutrients required by plants?

Ans. Plants require various types of nutrients for their growth and development. The main nutrients required by plants are macronutrients and micronutrients. Macronutrients include nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur, while micronutrients include iron, manganese, zinc, copper, boron, molybdenum, and chlorine.

4. How does the process of photosynthesis occur in plants?

Ans. Photosynthesis occurs in plants through a series of steps. First, the plant's leaves absorb sunlight. Then, the chlorophyll present in the chloroplasts captures the energy from the sunlight. This energy is used to convert carbon dioxide and water into glucose and oxygen. Glucose is stored in plants as a source of energy, while oxygen is released into the atmosphere.

5. Can plants survive without sunlight?

Ans. No, plants cannot survive without sunlight. Sunlight is essential for the process of photosynthesis, which is the main source of energy for plants. Without sunlight, plants would not be able to produce glucose and oxygen, leading to their inability to grow and survive. However, certain plants can tolerate low light conditions or adapt to shade by adjusting their growth patterns.

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