Nutrition in Plants: Class 7 science chapter 1[Full Chapter]

NCERT TUTORIAL 6,7 and 82 minutes read

Plants obtain essential nutrients through photosynthesis utilizing water, carbon dioxide, and minerals, while animals, including humans, rely on plants or other animals for nutrition. Parasitic plants, like the immortal vine, depend on host plants for food and shelter, showcasing the diversity of plant nutrition strategies.

Insights

  • Plants synthesize their food through photosynthesis using water, carbon dioxide, and minerals, while animals rely on plants or other animals for nutrition.
  • Parasitic plants like the Immortal vine depend on host plants for food, showcasing a diverse range of plant nutrition strategies, including symbiotic relationships and the utilization of external sources for nutrients.

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Recent questions

  • How do plants obtain essential nutrients?

    Plants synthesize food using water, carbon dioxide, and minerals.

  • What is the role of chlorophyll in plants?

    Chlorophyll captures light energy for photosynthesis.

  • How do plants differ from animals in nutrition?

    Plants produce their food, while animals rely on plants.

  • What is the significance of nitrogen for plant growth?

    Nitrogen is essential for plant growth and obtained through bacteria.

  • What is the mode of nutrition for parasites?

    Parasites depend on host plants for food and shelter.

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Summary

00:00

Plant Nutrition: Essential Nutrients and Photosynthesis

  • Nutrition in plants involves obtaining essential nutrients like carbohydrates, proteins, fats, vitamins, and minerals.
  • Plants synthesize their food using water, carbon dioxide, and minerals.
  • Plants can produce their food, while animals, including humans, rely on plants or other animals for nutrition.
  • Vegetarians directly consume plants, while non-vegetarians consume animals that feed on plants.
  • The mode of nutrition in plants involves utilizing water, carbon dioxide, and minerals to create food.
  • Photosynthesis is the process through which plants capture solar energy to produce food.
  • Chlorophyll is crucial in photosynthesis, as it captures light energy and converts carbon dioxide and water into oxygen and carbohydrates.
  • Carbohydrates are complex compounds made of carbon, hydrogen, and oxygen.
  • Nitrogen is essential for plant growth and is obtained through nitrogen-fixing bacteria in the soil.
  • Plants without chlorophyll rely on external sources for nutrition, highlighting the diversity in plant nutrition strategies.

27:12

"Parasitic Nutrition: Plants, Fungi, and Symbiosis"

  • Rafik mode of nutrition is dependent on others for food and is called parasitic mode of nutrition.
  • Immortal vine is a parasite that feeds on a host plant unable to make its own food.
  • Parasites are plants that cannot cook their own food.
  • Parasites are dependent on host plants for food and shelter.
  • Incentivorous plants cluster to sequester nutrients and are formed in clusters.
  • Mushrooms grow on wet or rotten soil and obtain nutrients from their environment.
  • Fungi can grow in various materials like leather and articles left in hot and humid conditions.
  • Fungal spores present in the environment can cause spoilage of items.
  • Symbiosis is a relationship where plants provide nutrients to fungi in exchange for water and minerals.
  • Fertilizers are used to replenish nutrients in the soil for plant growth, especially nitrogen.
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