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Modes of Nutrition in Plants
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Modes of Nutrition in Plants

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Questions and Answers

What is the primary source of energy for autotrophic nutrition in plants?

  • Water
  • Carbon dioxide
  • Light energy
  • Glucose
  • Which macronutrient is essential for amino acid synthesis and protein production?

  • Phosphorus
  • Nitrogen (correct)
  • Potassium
  • Carbon
  • What is the primary function of ion channels and pumps in plant nutrient uptake?

  • Produce glucose and oxygen
  • Increase surface area for absorption
  • Enhance mycorrhizal association
  • Regulate ion transport across cell membranes (correct)
  • Which micronutrient is involved in enzyme regulation and protein synthesis?

    <p>Zinc</p> Signup and view all the answers

    What is the primary effect of pH on plant nutrition?

    <p>Affects nutrient availability and root growth</p> Signup and view all the answers

    What is the primary function of root hairs in plant nutrition?

    <p>Increase surface area for absorption of water and minerals</p> Signup and view all the answers

    What is the primary benefit of mycorrhizal association in plant nutrition?

    <p>Enhances nutrient uptake and availability</p> Signup and view all the answers

    Which factor influences nutrient uptake and transport in plants?

    <p>Water availability</p> Signup and view all the answers

    Study Notes

    Modes of Nutrition in Plants

    • Autotrophic Nutrition: Plants prepare their own food through photosynthesis, using light energy, water, and carbon dioxide to produce glucose and oxygen.

    Essential Nutrients for Plant Growth

    • Macronutrients:
      • Nitrogen (N): necessary for amino acid synthesis and protein production
      • Phosphorus (P): involved in energy transfer, DNA synthesis, and root development
      • Potassium (K): regulates water balance, stomatal opening, and enzyme activation
    • Micronutrients:
      • Iron (Fe): essential for photosynthesis, respiration, and enzyme function
      • Zinc (Zn): involved in enzyme regulation, protein synthesis, and wound healing
      • Boron (B): necessary for cell wall formation, sugar metabolism, and flower development

    Mechanisms of Nutrient Uptake

    • Root Hairs: increase surface area for absorption of water and minerals
    • Ion Channels and Pumps: regulate ion transport across cell membranes
    • Mycorrhizal Association: symbiotic relationship between plant roots and fungi enhances nutrient uptake

    Soil Factors Affecting Plant Nutrition

    • pH: affects nutrient availability and root growth
    • Water Availability: influences nutrient uptake and transport
    • Soil Texture and Structure: impact root growth, aeration, and water infiltration

    Modes of Nutrition in Plants

    • Plants prepare their own food through photosynthesis, using light energy, water, and carbon dioxide to produce glucose and oxygen.

    Essential Nutrients for Plant Growth

    • Nitrogen (N) is necessary for amino acid synthesis and protein production.
    • Phosphorus (P) is involved in energy transfer, DNA synthesis, and root development.
    • Potassium (K) regulates water balance, stomatal opening, and enzyme activation.
    • Iron (Fe) is essential for photosynthesis, respiration, and enzyme function.
    • Zinc (Zn) is involved in enzyme regulation, protein synthesis, and wound healing.
    • Boron (B) is necessary for cell wall formation, sugar metabolism, and flower development.

    Mechanisms of Nutrient Uptake

    • Root Hairs increase surface area for absorption of water and minerals.
    • Ion Channels and Pumps regulate ion transport across cell membranes.
    • Mycorrhizal Association is a symbiotic relationship between plant roots and fungi that enhances nutrient uptake.

    Soil Factors Affecting Plant Nutrition

    • pH affects nutrient availability and root growth.
    • Water Availability influences nutrient uptake and transport.
    • Soil Texture and Structure impact root growth, aeration, and water infiltration.

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    Description

    Learn about the different ways plants obtain their nutrients, including autotrophic nutrition through photosynthesis and the essential macronutrients for plant growth.

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