Unit 2 Ch6-Ch

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Across
  1. 4. shipping and receiving center, modifies products from ER, transport vesicles can fuse products with plasma membrane
  2. 8. only in plants, protective layer external to the plasma membrane; protects cell, maintains shape, prevents excessive uptake of water
  3. 12. flow of cytoplasm inside the cell driven by the cytoskeleton; speeds up transport of molecules
  4. 13. interior of the cell; in eukaryotes, only refers to the region between the nucleus and plasma membrane
  5. 14. selective barrier that allows the passage of oxygen and nutrients and wastes
  6. 15. portion of ER that lacks ribosomes; synthesizes lipids, breaks down carbohydrates, detoxifies, and stores calcium ions
  7. 16. meshwork surrounding animal cells, consists of glycoproteins (collagen), proteoglycans (small core protein w/ many carbohydrate chains bonded) synthesized and secreted by cells
  8. 17. network of membranes within cytoplasm
  9. 20. hollow tubes made of tubulin protein to maintain cell shape, cell motility, chromosome movements and organelle movements
  10. 22. form continuous seals around cells, establishing a barrier to prevent leakage of extracellular fluid
  11. 27. contains most genetic information in eukaryotic cells
  12. 29. complexes made of rRNA and proteins, protein synthesis, not organelles
  13. 30. cytoplasmic channels, consist of membrane proteins extending from membranes of two cells (create pores that allow small molecules to pass) necessary fro communication
  14. 33. strands of actin, cell shape, muscle contraction, cytoplasmic streaming, cell division
  15. 35. part of ECM, cell surface receptor proteins, built from plasma membrane, transmit signals between ECM and cytoskeleton
  16. 38. site of cellular respiration, uses oxygen to breakdown organic molecules and synthesize ATP and energy for cells
  17. 39. organelle containing enzymes that transfer hydrogen atoms to oxygen to make hydrogen peroxide
  18. 40. cellular extension that contain microtubules; alternating power and recovering stroke
  19. 41. netlike array of protein filaments that maintains shape of nucleus and organizes genetic information; support nuclear envelope
  20. 44. foldings in mitochondria
Down
  1. 1. internal compartment of ER
  2. 2. sacs made of membrane; transport materials
  3. 3. large membrane bounded vesicle derived from ER or golgi
  4. 5. network of fibers
  5. 6. cell shape, anchorage of nucleus and other organelles, formation of nuclear lamina
  6. 7. encloses the nucleus, separating the cytoplasm and nucleus contents; has two layers
  7. 9. membrane enclosed sac of hydrolytic enzymes to digest food and recycle damaged parts of organelles; pH is acidic
  8. 10. in only plant cells, channels that connect cells, filled w/ cytosol, water and small solutes can pass through
  9. 11. flat sacs in chloroplasts
  10. 18. fasten cells together
  11. 19. composed of 9 sets of triplet microtubules
  12. 21. membranous tubules and sacs
  13. 23. organelle found in plants that absorb sunlight to drive photosynthesis
  14. 24. structure present in cytoplasm of animal cells that organize microtubules; important during cell division ; has two centrioles, near nucleus
  15. 25. motor protein; ATP hydrolysis drives shape change which causes bending in flagella and cilia
  16. 26. make up chromosomes, made up of DNA and protein
  17. 28. semifluid in all cells
  18. 31. fluid outside thylakoid
  19. 32. increases the surface area of cells without increasing volume
  20. 34. cellular extension that contains microtubules; less but longer, tail or fish motion, ex. sperm
  21. 36. process in which cells engulf and digest particles
  22. 37. framework of protein fibers extending through nuclear interior
  23. 41. prokaryotic cells have their DNA here, not membrane enclosed
  24. 42. portion of Er that contains ribosomes; synthesizes proteins and membrane factory
  25. 43. assembles ribosomal RNA