Unit 4 - Lock #1

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Across
  1. 4. Rapid cell growth and protein synthesis occur here.
  2. 6. Point at which sister chromatids are most closely attached.
  3. 8. Structure made of microtubules and associated proteins.
  4. 10. Number of cells in mitosis divided by total number of cells.
  5. 11. For many cells, this check point is the most important.
  6. 12. Signal molecule that generally causes a shape change in the receptor.
  7. 14. Programmed or controlled cell suicide.
  8. 15. Passing message from protein to protein.
  9. 16. Body temperature & blood glucose levels are regulated by this type of feedback.
Down
  1. 1. Type of receptor that bind hydrophilic signal molecules outside of the cell.
  2. 2. This type feedback amplifies a response, usually to achieve a specific outcome.
  3. 3. Adding a phosphate group onto a protein to activate it.
  4. 5. Agents capable of causing cancer.
  5. 7. Cells spend most of their time in this part of the cell cycle.
  6. 9. Cells pass this checkpoint if all chromosomes are attached to the mitotic spindle.
  7. 13. Multistep pathways can ______ a signal.
  8. 17. This resting phase occurs when cells exit the cell cycle.