Chapter 2 vocab

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Across
  1. 4. the material inside the cell, excluding the nucleus
  2. 6. allowing some substances to pass through while keeping other out
  3. 7. a small organelle in eukaryotic cells that act as the demolition crew within a cell
  4. 9. the movement of molecules across a membrane without the cell doing any work, as in osmosis and diffusion
  5. 12. a whip-like structure that some cells use to propel themselves through their environment
  6. 15. the organelle in eukaryotie cells that modify many proteins and packages them into small bubble-like structures called vesicles
  7. 17. a group of similar cells that work together
  8. 18. the movement of water across a semipermeable membrane
  9. 20. a special cell that divides and matures into any type of cell needed by the body
  10. 22. a network of tubes in eukaryotic cells that help produce and transport proteins and other molecules throughout the cell
  11. 28. the difference in the number of a certain type of molecule on each side of a membrane
  12. 29. a protein that speeds up or slows down chemical reactions
  13. 30. the molecule that a cell uses to power many processes in the cell that need chemical energy
  14. 31. a structure that contains a cell's DNA
Down
  1. 1. the organelle in eukaryotic cells that makes the most of cells ATP
  2. 2. a small structure that assembles proteins found in both prokaryotic and eukaryotic cells
  3. 3. several types of long, thin fibers anchored to various parts of the cell that helps the cell maintain and change its shape
  4. 5. a rigid structure that surrounds and protects some cells
  5. 8. the movement of a molecule through a membrane as a result of a concentration gradient
  6. 10. a group of tissues that work together
  7. 11. the molecule that contains important information for making proteins and helps regulate many cellular processes
  8. 13. a slimy layer surrounding some bacteria that protects them from harmful substances and prevents their dying out
  9. 14. the structure that surrounds all cells and regulates what comes in and goes out
  10. 16. describes a process that does no use oxygen
  11. 19. the model of cell that states that cells make up all living things
  12. 21. the process in organisms of breaking down molecules to produce atp
  13. 23. the green pigment that absorbs sunlight for photosynthesis
  14. 24. the process of which plants uses energy from the sun to turn carbon dioxide and water into the sugar glucose
  15. 25. an organizer that can make its own food, typically in an area that has no soil
  16. 26. the movement of molecules across a membrane that requires the cells to do work
  17. 27. the usually-surrounded structures in a eukaryotic cell that preform special functions