Vocabulary Crossword Puzzle #4

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Across
  1. 2. process that does not require oxygen to occur
  2. 6. regulation and maintenance of constant internal conditions in an organism
  3. 7. Adenosine TriPhosphate- High eneergy molecule that contains, within its bonds, energy that cells can use
  4. 17. condtion or quality of allowing some but not all, materials to cross a barrier or membrane
  5. 21. process of producing ATP by breaking down glucose molecules when oxygen is present
  6. 22. substance that is changed by a chemical reaction
  7. 23. light absorbing pigment molecule in photosynthesis organisms
  8. 24. anaerobic process by which ATP is produced by glycolysis
Down
  1. 1. movement of dissolved molecules in a fluid or gas from a region of higher concentrarion to a region of lower concentration
  2. 3. diffusion of water molecules across a semipermeable membrane from an area of higher water concentration to an area of lower water concentration
  3. 4. difference in the concentration of a substance from one location to another
  4. 5. molecuel that forms thea double layered cell membrane; consisting of a glycerol, phosphate group and two fatty acids
  5. 8. part of photosynthesis that uses energy absorbed during the light-dependent reactions to synthesize carbohydrates
  6. 9. part of photosynthesis that absorbs energy from sunlight and transfers energy to the light-independent reactions
  7. 10. anaerobic process in which glucose is broken down into two molecules of pyruvate and two net ATP are produced
  8. 11. method by which molecules are moved in and out of the cell
  9. 12. movement of molecules across the cell membrane without energy input from the cell
  10. 13. activities ocurring at the cell level
  11. 14. model that describes the arrangement and movement of the molecules taht makes up the cell membrane
  12. 15. energy-requiring movement of molecules across a membrane from a region of lower concentraion to a region of higer concentration
  13. 16. substance formed by a chemical reaction
  14. 18. the process of transforming energy from one form into another
  15. 19. process by which light energy is converted to chemical energy; produces sugar and oxygen from carbon dioxide and water
  16. 20. process that requires oxygen to occur