Cells

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Across
  1. 3. The diffusion of water across the cell membrane
  2. 4. A cell uses energy to import large amounts of materials INTO the cell using a vesicle
  3. 6. cancer cells can breakaway from the tumor & be carried to other parts of the body/organs & form more tumors
  4. 8. abnormal cells typically remain clustered together.
  5. 13. a repeated pattern of growth, DNA duplication and cell division that occurs in EUKARYOTIC cells.
  6. 14. Chromosomes condense & are visible as sister chromatids (in X's), Nuclear membrane disappears, Spindle fibers form out of centrioles
  7. 19. two identical chromatids
  8. 21. A transport protein acts as a protein channel to help (facilitate) the diffusion of molecules that normally couldn't pass through the cell membrane
  9. 22. cell division
  10. 24. When a cell uses energy to pump molecules across the membrane through a protein channel.
  11. 27. The division of the cytoplasm into two individual cells.
  12. 28. A cell that contains a nucleus and membrane bound organelles
  13. 29. cancer causing agents (chemicals that can cause cancer)
  14. 30. growth phase of cell. It is divided into 3 phases
  15. 31. a process that creates special structures and functions
Down
  1. 1. water concentration is above what is found in a cell's cytoplasm.
  2. 2. A unicellular organism that lacks a nucleus and membrane bound organelles
  3. 5. the two new cells that result from mitosis and cytokinesis
  4. 7. The need of an organism to maintain and regulate constant or stable internal conditions.
  5. 9. requires extra energy (ATP) to be spent to bring materials into the cell or expel materials out of the cell moving from low concentration to high concentration against the concentration gradient.
  6. 10. A cell uses energy to export large amounts of materials OUT OF the cell using a vesicle
  7. 11. Cell organelle that aids in cell division in animal cells only
  8. 12. The spreading out of molecules across a membrane until they are equally concentrated on both sides of the membrane.
  9. 15. water concentration is below what is found in a cell's cytoplasm.
  10. 16. In a plant cell, midline of dividing cells. Becomes the cell wall eventually.
  11. 17. Sister chromatids separate becoming individual chromosomes as chromatids move to opposite ends of the cell
  12. 18. specialized structures within the cell that work together to help the cell function
  13. 20. help pull apart the cell during replication and are made up of microtubules
  14. 23. Nuclear envelope forms around chromosomes at each side of the cell, Chromosomes start to look like chromatin again (threadlike instead of rodlike), Spindle fibers break down & dissolve, Cytokinesis begins.
  15. 25. requires no extra energy by the cell because molecules move from high concentration (squished together) to low concentration (spread out) areas down the concentration gradient.
  16. 26. Spindle fibers connect to the centromere of each sister chromatid, Chromosomes move to middle of the cell
  17. 27. uncontrolled cell division