Biology  by Bradford
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Cellular respiration: grass skirts

19 quick questions on AP Biology topic 3.5 Cellular Respiration, 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. Series of redox carriers that pump H⁺
  2. Glucose to two pyruvate in the cytosol
  3. 3-carbon product of splitting glucose
  4. Loop in the matrix that releases CO₂
  5. Final acceptor of the respiratory ETC
  6. Regenerates NAD⁺ when oxygen is absent
  7. Fermentation product in tired muscles
  8. Yeast fermentation product, with CO₂
  9. Inner fluid where the Krebs cycle runs
  10. Loss of electrons from a molecule
  11. Gain of electrons by a molecule
  12. ATP made by H⁺ flowing down its gradient
  13. Rotor enzyme that phosphorylates ADP
  14. Two-carbon fuel fed into the Krebs cycle
  15. Carrier reduced in glycolysis and Krebs
  16. ETC plus chemiosmosis, making most ATP
  17. Mitochondrial gap where H⁺ builds up
  18. Carrier reduced only in the Krebs cycle
  19. Lets H⁺ leak back, releasing heat

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