Biology Chapter 3

12345678910111213141516171819202122232425262728293031
Across
  1. 4. transport movement of substances across a plasma membrane that does not require energy
  2. 6. type of vesicle transport that moves substances into a cell
  3. 9. type of vesicle transport that moves substances out of a cell
  4. 11. organelle in eukaryotic cells that makes energy available to the cell in the form of ATP molecules
  5. 12. double layer of phospholipid molecules that makes up a plasma membrane
  6. 13. rigid layer that surrounds the plasma membrane of a plant cell and helps support and protect the cell
  7. 14. diffusion with the help of transport proteins
  8. 16. tiny, nonliving particle that contains DNA but lacks other characteristics of living cells
  9. 18. small saclike organelle that stores and transports materials inside a cell
  10. 19. organelle inside eukaryotic cells that contains most of the cell’s DNA and acts as the control center of the cell
  11. 20. organelle inside all cells where proteins are made
  12. 23. organelle in eukaryotic cells that helps make and transport proteins
  13. 24. thin coat of lipids (phospholipids) that surrounds and encloses a cell
  14. 26. cell that contains a nucleus and other organelles
  15. 30. cellcell without a nucleus that is found in single-celled organisms
  16. 31. diffusion of water molecules across a membrane
Down
  1. 1. type of passive transport that does not require the help of transport proteins
  2. 2. large saclike organelle that stores and transports materials inside a cell
  3. 3. type of active transport in which substances are carried across the cell membrane by vesicles
  4. 5. organelle in eukaryotic cells that processes proteins and prepares them for use both inside and outside the cell
  5. 7. structure within the cytoplasm of a cell that is enclosed within a membrane and performs a specific job
  6. 8. movement of substances across a plasma membrane that requires energy
  7. 10. type of active transport in which sodium ions are pumped out of the cell and potassium ions are pumped into the cell with the help of a carrier protein and energy from ATP
  8. 15. of filaments and tubules in the cytoplasm that provides a cell with an internal framework
  9. 17. organism that has cells containing a nucleus and other organelles
  10. 21. vacuole large saclike organelle in plant cells that stores substances such as water and helps keep plant tissues rigid
  11. 22. protein in a plasma membrane that helps other substances cross the membrane
  12. 25. energy-carrying molecule that cells use to power their metabolic processes
  13. 27. organelle in the cells of plants and algae where photosynthesis takes place
  14. 28. single-celled organism that lacks a nucleus
  15. 29. all of the material inside the plasma membrane of a cell (excluding organelles)