Saturday, May 1, 2010

CHAPTER 4: Chemical Composition of the Cell

Hydrogen, oxygen, nitrogen, carbon, sulfur, and phosphorus normally makeup more
than 99% of the mass of living cells.
  • Ninety-nine percent of the molecules inside living cells are water molecules.
  • Cells normally contain more protein than DNA.
  • Homogenous polymers are non-informational.
  • All non-essential lipids can be generated from acetyl-CoA.
  • Like certain amino acids and unsaturated fatty acids, various inorganic elements are dietarily "essential".
  • Most all diseases in animals are manifestations of abnormalities in biomolecules, chemical reactions, or biochemical pathways.
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