Across
- 3. examples are nucleus, ribosome, and cell membrane
- 4. hates water
- 5. cell membrane only allows certain things to pass through
- 7. the results of a chemical reaction
- 9. cells combine to form these
- 11. molecules move from high concentration to low concentration
- 14. a protein that speeds up chemical reactions
- 16. type of diffusion involving water
- 17. moving molecules through the membrane with the help of ATP
- 18. a living thing
- 19. atoms combine to form these
- 20. basic unit of life
Down
- 1. the place on an enzyme where the substrate binds
- 2. organs make up these
- 6. energy required to start a chemical reaction
- 7. moving molecules through the membrane without ATP
- 8. reactant molecules
- 10. likes water
- 12. when the enzyme changes shape and is unable to function
- 13. basic unit of matter
- 15. cell membrane is made up of these
- 18. examples are heart, brain, and lungs