Biology test 2

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Across
  1. 4. When something can be both polar and nonpolar
  2. 5. Membrane proteins "hook" together
  3. 6. Most traffic across the cell membranes occur by
  4. 11. Molecule that CAN dissolve in the lipid bilayer
  5. 12. Absorbs energy from its surroundings and is nonspontaneous
  6. 15. Reaction that breaks down complex molecules into simpler compounds
  7. 21. Where Glycolysis occurs
  8. 23. Proteins that speed up chemical reactions
  9. 24. Where ETC occurs
  10. 26. Diffusion across membrane that DOES require ATP
  11. 27. First step of cellular respiration
Down
  1. 1. Releases energy and is spontaneous
  2. 2. Cells engulf a particle or organism within a vesical
  3. 3. A pocket or groove in the enzyme structure where the substrate goes
  4. 7. the reactant an enzymes acts on
  5. 8. Diffusion across membrane that DOESN'T require ATP
  6. 9. Second step of cellular respiration
  7. 10. cells "gulp" droplets of fluid or water within a vesicle
  8. 13. Reaction that build complex molecules from simpler ones
  9. 14. the totality of an organism's chemical reaction
  10. 16. Diffusion of water cells
  11. 17. Membranes have to be what?
  12. 18. energy available to do work
  13. 19. Where Kreb Cycle occurs
  14. 20. Molecule that CAN'T dissolve in the lipid bilayer
  15. 22. How a cell acts on a signal
  16. 25. Third step of cellular respiration