Biology  by Bradford
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Feedback and the cell cycle: grass skirts

25 quick questions on AP Biology topics 4.4 Feedback, 4.5 Cell Cycle and 4.6 Regulation of Cell Cycle, each answered in a word or two. Print a sheet for each team, a key for the checker and a tick sheet, then tape the sheets to the board and race.

How it runs

  1. SnipA runner cuts one strip off the bottom of their team’s sheet.
  2. Answer as a pairBack at the table, they write the answer on the strip. No books.
  3. Get it checkedThe checker reads it against the key: you, or a student holding it.
  4. Back for the nextA tick earns the next strip. Wrong? Back to the table to try again.

The questions on this sheet

The checker’s key, with every answer, prints with the sheets.
  1. Keeping internal conditions stable
  2. Response that reverses a change
  3. Response that pushes a change further
  4. Hormone that lowers blood glucose
  5. Hormone that raises blood glucose
  6. G₁, S and G₂ together
  7. Growth before DNA is copied
  8. Stage when DNA replicates
  9. Growth and checks after DNA is copied
  10. Division making two identical nuclei
  11. Final split into two daughter cells
  12. Twin copies of a replicated chromosome
  13. Stop-or-go gate in the cell cycle
  14. Disease of unchecked cell division
  15. Target value a control system holds
  16. Hormone driving labor contractions
  17. Gas that spreads fruit ripening
  18. Non-dividing state outside the cycle
  19. Constricted region joining twin copies
  20. Microtubules that pull chromosomes apart
  21. Protein that builds up, then is destroyed
  22. Cells stop dividing once a layer fills
  23. Signal protein that stimulates division
  24. Steady-level enzyme, active when paired
  25. Protein that halts cells with damaged DNA

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