Across
- 2. smallest unit of matter that cannot be broken down
- 7. group of atoms held together by a covalent bond
- 8. organic compound made of amino acid
- 9. substance that is made of several atoms
- 11. site of a enzyme that attaches to a substance
- 13. oxygenic compound composed by carbon
- 14. homogenous mixture of two or more substances
- 16. attraction of different substances
- 18. substance compound of a single atom
- 19. substance that speeds up chemical reaction
Down
- 1. attractions of the same kind of substances
- 3. sub units of nucleic acid
- 4. Acid building block of protein
- 5. nonpolar organic molecule
- 6. base unit in carbohydrate
- 10. Acid organic molecules made up of nucleotides
- 12. reduces concentration of hydrogen ions
- 15. electrically charged atom or molecule
- 16. increases concentration of hydrogen ions
- 17. capacity of doing work