Biology  by Bradford
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C1.1 Enzymes and metabolism: grass skirts

20 quick questions on enzymes and metabolism, 15 of them at standard level, 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. All the chemical reactions in an organism
  2. Half of metabolism that builds molecules
  3. Half of metabolism that breaks molecules
  4. Pocket on an enzyme where substrate binds
  5. Reactant that an enzyme acts upon
  6. Barrier to reaction that enzymes lower
  7. Heat or pH destroying active site shape
  8. Warmth at which enzyme activity peaks
  9. Acidity at which an enzyme works best
  10. Active site reshaping as substrate binds
  11. Catalyst and reactant briefly joined
  12. Each enzyme fitting only one substrate
  13. Catalyst fixed in gel beads for industry
  14. Substrate meeting active site by chance
  15. Splits hydrogen peroxide into water and O₂
  16. Substrate mimic occupying the active site
  17. Blocker binding away from the active site
  18. Last molecule halting its own pathway
  19. Catalyst secreted to act outside the cell
  20. Penicillin's permanent block of an enzyme

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