Chapter 4

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Across
  1. 3. focus beam through a specimen to look at the internal structure
  2. 8. how close the specimen is
  3. 9. where ribosomes are synthesized
  4. 12. a selective barrier made of a double layer of phospholipids that allows passage of oxygen nutrients and waste
  5. 13. encloses the nucleus
  6. 15. structure within the nucleus that comprises chromatin that contains DNA
  7. 17. material secreted from animal or fungal cells that provides mechanical protection, structure and anchoring for the cells in the tissue
  8. 19. transportation structure
  9. 20. organelle in animal cells that helps break down macromolecules and worn-out cells
  10. 23. where DNA is found in prokaryotic cells
  11. 24. a biological concept that states that one or more cells comprise all organisms, the cell is the basic unit of life and new cells arise from existing cells
  12. 26. supports the cellular structure of plant cells
  13. 28. molecular motors that can move along the cytoplasm of animal cells
  14. 30. provides rigidity and shape to the cell and aids with cellular mobility
  15. 32. cell that has a membrane-bound nucleus
  16. 34. shape the cell and act as tracks for motor proteins
  17. 36. organelle, comprised of stacked membranes that sorts, tags and packages lipids and proteins for distribution
  18. 38. channel between cells
  19. 40. protein fiber network that collectively maintains the cell’s shape, secures some organelles in specific positions, allows cytoplasm and vesicles to move within the cell
  20. 41. group of organelles and membranes in eukaryotic cells that work together modifying, packaging, and transporting lipids and proteins
  21. 42. an instrument that can magnify and objects
  22. 43. the movement of cytoplasm within a cell
  23. 44. the measure of the clarity of a microscopic image
  24. 45. region in animal cells made of two centrioles that serve as an organizing center for microtubules
  25. 46. primary energy molecule in the cell
  26. 47. subcellular structures in a cell
Down
  1. 1. hair-like structure that helps with mobility
  2. 2. linkages between adjacent epithelial cells that form when cadherins in the plasma membrane attach to intermediate filaments
  3. 4. long hair-like structure that helps send signals and mobility
  4. 5. magnifies an object using a light beam that passes and bends through the specimen
  5. 6. series of interconnected membranous structures within eukaryotic cells that collectively modify proteins and synthesize lipids
  6. 7. focus beam on the surface to study the surface
  7. 10. plant cell organelle that carries out photosynthesis
  8. 11. channel that passes between adjacent plant cells' cell walls and connects their cytoplasm which allows for transportation of materials
  9. 14. the cytoplasm's gel-like material in which cell structures are suspended
  10. 16. removes toxins in plant and animal cells
  11. 18. makes proteins
  12. 21. region between the plasma membrane and the nuclear envelope that contains organelles suspended in the cytosol, the cytoskeleton, and other chemicals
  13. 22. contractile which pumps water and central which holds water
  14. 25. makes up microfilaments
  15. 27. sites of cellular respiration
  16. 29. large organelle in plants that holds water
  17. 31. makes proteins for use in the cell and export
  18. 33. allows nothing to move through
  19. 35. magnifies an object using an electron beam that passes and bends through the specimen
  20. 37. cell that doesn't have a nucleus
  21. 39. contains most of the cell DNA