Cells Study Guide

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Across
  1. 2. a protein in the membrane that pumps molecules or ions against the concentration gradient
  2. 3. the diffusion of water molecules across a semipermeable membrane towards an area of low to high solute concentration
  3. 5. water loving
  4. 11. organelle in eukaryotic cells that helps make and transport proteins and lipids (smooth and rough)
  5. 13. cells that have additional organelles like a cell wall and chloroplasts
  6. 14. substance (usually liquid) in which a solute is dissolved
  7. 15. movement of substances across a plasma membrane that does not require energy because the substance moves with the concentration gradient
  8. 17. the movement of substances across a cell membrane through transport proteins from high to low concentration
  9. 18. cells that do not contain a nucleus
  10. 20. material dissolved within a another substances
  11. 21. cells that contain a nucleus
  12. 24. water fearing
  13. 26. material inside the cell membrane that is mostly watery cytosol that the organelles are floating in
  14. 27. organelle that modifies, sorts, and packages proteins and lipids for secretion out of the cell and use within the cell
Down
  1. 1. a solution with higher solute concentration compared to the solute concentration within the cell
  2. 4. the movement of molecules from an area of high concentration to low concentration
  3. 6. a structure within the cytoplasm that performs a specific job in the cell
  4. 7. the difference in the concentrations of molecules across a membrane
  5. 8. vesicle transport that moves substances out of the cell
  6. 9. a protein in a cell membrane that helps molecules pass through the membrane often forming a channel
  7. 10. transport that requires energy in the form of ATP that typically moves materials against the concentration gradient
  8. 12. double layer of molecules with hydrophilic "heads" and hydrophobic "tails" surrounding the cell
  9. 16. small sac-like organelles that transport materials inside the cell
  10. 19. the ability to allow only certain molecules in or out of the cell
  11. 22. vesicle transport that moves and engulfs substances into a cell
  12. 23. a solution with lower solute concentration compared to the solute concentration within the cell
  13. 25. organelle inside eukaryotic cells that contains most of the cells DNA and acts as a control center for the cell