Autotrophs: Material Requirements Beyond Energy
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Questions and Answers

What raw materials do autotrophs need besides energy?

  • Nitrogen and oxygen
  • Water and minerals like nitrogen, phosphorus, iron, and magnesium (correct)
  • Water and carbon dioxide
  • Carbon dioxide and oxygen

    • How is water used by autotrophs in the process of photosynthesis obtained?

  • From the soil through the roots (correct)
  • From other autotrophs through symbiosis
  • From the atmosphere through leaves
  • From water bodies through absorption by leaves

    • What is the role of nitrogen in autotrophs?

  • It is a waste product
  • It is an essential element for protein synthesis and other compounds (correct)
  • It is used for energy production
  • It is involved in photosynthesis

    • In what form is nitrogen mainly taken up by autotrophs from the soil?

    <p>As inorganic nitrates or nitrites</p> Signup and view all the answers

    How do autotrophs obtain organic compounds containing nitrogen?

    <p>Prepared by bacteria from atmospheric nitrogen</p> Signup and view all the answers

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