Across
- 3. makes up all living organisms
- 5. transport of molecules that uses energy, in the form of an energy-storing chemical called ATP to help them cross the cell membrane.
- 7. water loving
- 11. proteins that speed things up like metabolism and chemical reaction
- 14. only allows some subtance and molecules to pass
- 15. t means that the substance tends to move from an area of higher concentration to an area of lower concentration.
- 17. A particle of matter that uniquely defines a chemical element
- 18. a different type of diffusion that involves water
- 20. a membrane that allows only some substances and molecules to pass into or leave the cell
Down
- 1. water fearing
- 2. breaking of a protein
- 4. A small structure in a cell
- 6. a group of atoms boned together
- 8. where chemical reaction occurs
- 9. something having many related parts
- 10. molecules upon which an enzyme acts
- 12. cell membranes
- 13. A groups of cells that work together
- 16. to stimulate a cell in a resting state to become active.
- 19. A part of the body that performs a specific function
- 21. complex molecules