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