Keystone Vocab

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Across
  1. 3. proteins that increases the rate of chemical reactions without being used up
  2. 5. Circular DNA molecules that are separate from chromosomal DNA
  3. 8. single-celled organism; lacks a membrane-bound nucleous
  4. 11. what connects to create a polymer
  5. 12. describes a nonliving factor in an ecosystem
Down
  1. 1. a molecule and a different type of molecule connected
  2. 2. composed of many cells
  3. 4. one or more cells containing membran-bond organells
  4. 6. two types of the same molecule bonded
  5. 7. Chemical reaction where chemical bonds in polymers are broken with water present
  6. 9. A substance that attaches to an enzyme in a chemical reaction
  7. 10. describes a living or once-living organism