Unit 2- Cell Structure and Function

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Across
  1. 1. small, sphericaly shaped sacs that bud from the outside surface of the Golgi apparatus; often migrate to and merge with the plasma membrane, releasing their contens to the outside of the cell
  2. 5. Deoxiribonucleic Acid
  3. 6. where proteins are made
  4. 7. membrane with two fluid, while the hydrophobic tails associate with each other
  5. 8. Membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions
  6. 9. group of flattened sacs arranged like a stack of bowls; modify and package proteins and lipids into vesicles; vesicles often migrate to and merge with the plasma membrane
  7. 11. contains nuclear envelope, DNA (spread out w/in this as the threadlike matrix chromatin)
  8. 13. space the space between the outside membrane and inside membrane
  9. 14. organelles that conduct photosynthesis and contain chlorophyll
  10. 16. fluid around the thylakoids
  11. 17. contain digestive enzymes; break down food, cellular debris, and foreign invaders such as bacteria
Down
  1. 2. states that all organisms are composed of similar units of organization, called cells
  2. 3. "cell eating"; undissolved material enters the cell; p.m. wraps around the solid material and engulfs it
  3. 4. found in animals in the area b/w adjacent cells; occupied by fibrous structural proteins, adhesion proteins, and polysaccharides; provides mechanical support and helps bind adjacent cells together
  4. 10. Number of layers that the plasma membrane made of the phospholipid molecules has.
  5. 12. "cell drinking"; dissolved substances enter the cell; p.m. folds inward to form a channel allowing liquid to enter; p.m. closes off the channel
  6. 15. diffusion of water molecs across a selectively permeable membrane