Biology Chapter 2 Terms - Brendan Warren

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Across
  1. 5. Pure substance made up of only one kind of atom
  2. 6. A substance that provides an alternate route from reactants to products that doesn't require as much energy
  3. 8. Molecules that have a central carbon bonded to four groups
  4. 9. Simple carbohydrates
  5. 10. A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA
  6. 12. Changes that don't change a matter's identity
  7. 14. A substance produced by a living organism that acts as a catalyst to bring about a specific reaction
  8. 16. A substance that is formed as the result of a chemical reaction
  9. 17. The joining of two different substances due to attractive forces that hold them
  10. 18. Stored chemical energy that holds two atoms together
Down
  1. 1. Changes that change a matter's identity
  2. 2. The measure of average speed of particles within a substance
  3. 3. Organic compounds made of carbons, hydrogens, and oxygens
  4. 4. A substance that takes part in and undergoes change during a reaction
  5. 7. The tendency of energy to disperse
  6. 11. Non-polar molecules
  7. 13. A pure substance made of two or more element chemically combined
  8. 14. Ability to do work
  9. 15. The attraction of molecules for each other
  10. 17. Basic building block of matter