Exploring the Foundations of Life
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Questions and Answers

Which of the following elements are essential to life?

  • Phosphorus, Sulfur, Magnesium, Chlorine
  • Boron, Zinc, Selenium, Fluorine
  • Hydrogen, Oxygen, Nitrogen, Carbon (correct)
  • Calcium, Iron, Sodium, Potassium

    • What are the advantages of carbon as a basis for living systems?

  • Carbon can form stable covalent bonds with other elements (correct)
  • Carbon is abundant in the universe
  • Carbon is highly reactive
  • Carbon can exist in a variety of oxidation states

    • Why is silicon not a good substitute for carbon in living systems?

  • Silicon is highly reactive
  • Silicon cannot form covalent bonds
  • Silicon forms less stable bonds compared to carbon (correct)
  • Silicon is less abundant in the universe

    • What are the differences between prokaryotic and eukaryotic cells?

    <p>Prokaryotic cells lack a nucleus, while eukaryotic cells have a nucleus</p> Signup and view all the answers

    What are the building blocks of biomolecules?

    <p>Amino acids, nucleotides, fatty acids, monosaccharides</p> Signup and view all the answers

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