Chapter 3: Cell Structure and Function

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Across
  1. 4. organelle composed of numerous membranes that are used to convert solar energy into chemical energy; contains chlorophyll
  2. 6. condition or quality of allowing some, but not all, materials to cross a barrier or membrane
  3. 9. movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration
  4. 10. theory that states that all organisms are made of cells, all cells are produced by other living cells, and the cell is the most basic unit of life
  5. 11. molecule that forms a double-layered cell membrane; consists of glycerol, a phosphate group, and two fatty acids
  6. 13. solution that has a lower concentration of dissolved particles compared with another solution
  7. 15. double-layer of phospholipids that forms a boundary between a cell and the surrounding environment and controls the passage of materials into and out of a cell
  8. 19. energy-requiring movement of molecules across a membrane from a region of lower concentration to a region of higher concentration
  9. 21. cell that has a nucleus and other membrane-bound organelles
  10. 26. organelle that links amino acids together to form proteins
  11. 27. uptake of liquids or large molecules into a cell by inward folding of the cell membrane
  12. 28. jellylike substance inside cells that contains molecules and in some cells organelles
  13. 29. protein that detects a signal molecule and performs an action in response
  14. 31. organelle composed of a double membrane that acts as the storehouse for most of a cell's DNA
  15. 32. solution that has a higher concentration of dissolved particles compared with another solution
  16. 33. diffusion of molecules assisted by protein channels that pierce a cell membrane
  17. 34. difference in the concentration of a substance from one location to another
Down
  1. 1. release of substances out a cell by the fusion of a vesicle with the membrane
  2. 2. movement of molecules across the cell membrane without energy input from the cell
  3. 3. model that describes the arrangement and movement of the molecules that make up a cell membrane
  4. 5. bean-shaped organelle that supplies energy to the cell and has its own ribosomes and DNA
  5. 7. stack of flat, membrane-enclosed spaces containing enzymes that process, sort, and deliver proteins
  6. 8. organelle that contains enzymes
  7. 12. interconnected network of thin, folded membranes that produce, process, and distribute proteins
  8. 14. rigid structure that gives protection, support, and shape to cells in plants, algae, fungi, and bacteria
  9. 16. organelle that is used to store materials, such as water, food, or enzymes, that are needed by the cell
  10. 17. uptake of a solid particle into a cell by engulfing the particle
  11. 18. cell that does not have a nucleus or other membrane-bound organelles
  12. 20. network of proteins, such as microtubules and microfilaments, inside a eukaryotic cell that supports and shapes the cell
  13. 22. membrane-bound structure that is specialized to perform a distinct process within a cell
  14. 23. diffusion of water molecules across a semipermeable membrane from an area of higher water concentration to an area of lower water concentration
  15. 24. small organelle that contains and transports materials within the cytoplasm
  16. 25. small cylinder-shaped organelle made of protein tubes arranged in a circle; aids mitosis
  17. 30. solution that has an equal concentration of dissolved particles compared with another solution