Cell Organelles and Transport

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Across
  1. 2. Movement of large particles into the cell by engulfing.
  2. 3. Protein channels that open or close due to stimuli.
  3. 5. Stacks of thylakoids.
  4. 6. Smallest, simplest type of cell; lacks a nucleus.
  5. 7. Movement across membrane requiring no ATP but uses carrier proteins.
  6. 10. Diffusion of water across a semipermeable membrane.
  7. 13. Active transport pump that moves sodium and potassium.
  8. 17. Network of membranes with ribosomes attached.
  9. 26. Type of transport that requires no energy.
  10. 29. Passive transport that requires a carrier protein.
  11. 30. Pair of cylindrical organelles used in cell division in animal cells.
  12. 31. The tendency of molecules to spread out evenly.
  13. 35. Fluid portion of the cell where organelles are suspended.
  14. 39. Site of protein synthesis.
  15. 40. A vesicle created during phagocytosis.
  16. 43. Term for substances being taken into the cell.
  17. 45. Organelle responsible for photosynthesis in plants.
  18. 46. Outer layer in plant cells made of cellulose.
  19. 47. Green pigment found inside chloroplasts.
  20. 48. Small openings in the nuclear envelope for transport.
  21. 49. Folded inner membrane of mitochondria.
  22. 50. Powerhouse of the cell; site of ATP production.
Down
  1. 1. A cell placed in this environment stays the same size.
  2. 4. Double-layer molecule forming most of the membrane.
  3. 8. Transport process that releases substances from a cell.
  4. 9. Organelle that controls all cell activities.
  5. 11. Network of membranes that makes lipids and carbohydrates.
  6. 12. Semifluid internal material of chloroplasts.
  7. 14. Viral or bacterial particles are engulfed during this process.
  8. 15. Gel-like interior of mitochondria.
  9. 16. Condition where inside and outside concentrations are equal.
  10. 18. Type of endocytosis that brings in fluids.
  11. 19. Movement of substances against the concentration gradient.
  12. 20. A cell placed in this environment gains water and swells.
  13. 21. The molecule that supplies energy for active transport.
  14. 22. Structure that helps proteins leave the Golgi.
  15. 23. Organelle where aerobic respiration takes place.
  16. 24. Organelle that contains digestive enzymes for breakdown.
  17. 25. Movement of molecules from high to low concentration.
  18. 27. Stack of flattened membranes that modify and package proteins.
  19. 28. Structure inside nucleus where ribosomes are made.
  20. 32. Protein doorways that help move ions across membranes.
  21. 33. Storage sac found in plants for water and nutrients.
  22. 34. A cell placed in this environment loses water and shrinks.
  23. 36. Term for the concentration difference that drives diffusion.
  24. 37. Internal fluid of the nucleus.
  25. 38. Flattened membrane sacs inside the chloroplast.
  26. 41. Boundary that separates interior of cell from outside environment.
  27. 42. Long, thin protein tubes that give the cell structure.
  28. 44. Organelle that has a double membrane and DNA similar to mitochondria.