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11 November, 2015 - 16:06
  1. Why are hydrogen bonds and van der Waals interactions necessary for cells?
  2. Why can some insects walk on water?
  3. Explain why water is an excellent solvent.
  4. Explain at least three functions that lipids serve in plants and/or animals.
  5. Explain what happens if even one amino acid is substituted for another in a polypeptide chain. Provide a specific example.