Across
- 3. solution that has a lower concentration of dissolved particles compared with another solution
- 7. release of substances out a cell by the fusion of a vesicle with the membrane
- 10. part of photosynthesis that absorbs energy from sunlight and transfers energy to the light-independent reactions
- 11. condition or quality of allowing some, but not all, materials to cross a barrier or membrane
- 12. diffusion of water molecules across a semipermeable membrane from an årea of higher water concentration to an area of lower water concentration
- 13. process by which ATP is made using chemicals as an energy source instead of light
- 14. movement of molecules across a membrane from a region of lower concentration to a region of higher concentration; requires energy input by a cell
- 17. difference in the concentration of a substance from one location to another
- 18. uptake of liquids or large molecules into a cell by inward folding of the cell membrane
- 19. protein that detects-a signal molecule and performs an action in response
Down
- 1. movement of molecules across the cell membrane without energy input from the cell
- 2. process by which light energy is converted to chemical energy; produces sugar and oxygen from carbon dioxide and water
- 4. diffusion of molecules assisted by protein channels that pierce a cell membrane
- 5. ADP - low-energy molecule that can be converted to ATP
- 6. ATP - high-energy molecule that contains, within its bonds, energy that cells can use
- 8. movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration
- 9. solution that has an equal concentration of dissolved particles compared with another solution
- 15. solution that has a higher concentration of dissolved particles compared with another solution
- 16. uptake of a solid particle into a cell by engulfing the particle; see endocytosis
- 17. light-absorbing pigment molecule in photosynthetic organisms