Chemicals of Life

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Questions and Answers

What are the backbone elements of organic molecules?

  • Hydrogen atoms
  • Carbon atoms (correct)
  • Nitrogen atoms
  • Oxygen atoms

Which type of chemical bond is important in biological molecules?

  • Hydrogen bond
  • Covalent bond (correct)
  • Ionic bond
  • Van der Waals bond

Which type of molecules usually lack carbon?

  • Organic molecules
  • Ionic molecules
  • Covalent molecules
  • Inorganic molecules (correct)

What are the examples of inorganic molecules mentioned in the text?

<p>CO2, NH3, H2O, O2, H2 (C)</p> Signup and view all the answers

What are the important elements in biomolecules?

<p>Carbon, hydrogen, oxygen, nitrogen (A)</p> Signup and view all the answers

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