Across
- 2. 4 valence electrons, sixth element
- 6. 2 or more chemically bonded atoms
- 8. energy needed to start a reaction
- 9. speeds up chemical reactions
- 12. sugar
- 13. makes up polymers
- 15. made from amino acids
- 17. process to make polymers
- 18. fat, oil, or wax
Down
- 1. ending element or compound
- 3. starting element or compound
- 4. polymers of nucleotides
- 5. active site to speed up reaction
- 6. from reactants to products
- 7. made from monomers
- 8. amino group and carboxyl group
- 10. giant molecules
- 11. reactants in a catalyst sped up reaction
- 14. catalysts in cell
- 16. make up nucleicacids