Anatomy & Physiology Chapter 2

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Across
  1. 3. a lipid containing three fatty acid chains and one glycerol
  2. 4. an atom with 11 protons, 12 neutrons, and 10 electrons; also an atom that has lost 2 electrons
  3. 9. the subatomic particles that are responsible for the chemical behavior of atoms
  4. 11. type of lipid composed of 4 interlocking rings
  5. 13. nerve impulses involve the flow of an electrical current i.e., movement of ions across a cell membrane
  6. 15. a chemical reaction that joins monosaccharides to become a polysaccharide
  7. 18. glucose and starch are examples of this
  8. 19. the sum of the protons and neutrons in an atom
  9. 20. the most common steroid
Down
  1. 1. this is classified as an inorganic compound
  2. 2. is single stranded
  3. 5. the most abundant element in the human body
  4. 6. hold the nucleotide chains of DNA together
  5. 7. anything that has mass and takes up space
  6. 8. substance that is a proton donor and releases hydrogen ions
  7. 10. monomers are joined together to form more complexmolecules
  8. 12. increases the rates of chemical reactions by at least a millionfold; they are biological catalysts
  9. 14. oils that have been solidified by the addition of hydrogen atoms
  10. 16. simple sugars containing between 3 and 7 carbon atoms
  11. 17. the organic compounds that function in building tissues and acting as enzymes