Biology  by Bradford
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A2.2 Cell structure: grass skirts

24 quick questions on cell structure, 21 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. Image size divided by actual size
  2. Line showing a real length on an image
  3. Unicellular organism lacking a nucleus
  4. Boundary layer present in every cell
  5. Watery interior where most reactions occur
  6. Double-membraned store of chromosomes
  7. Organelle whose inner membrane has cristae
  8. Organelle with stacked thylakoids
  9. Rigid layer outside a plant's membrane
  10. Sap-filled sac making plant cells turgid
  11. Long whip-like structure for movement
  12. Ability to tell two close points apart
  13. Region of a bacterium holding its DNA loop
  14. Protein-making particle of bacteria
  15. Polysaccharide in fungal walls
  16. Microtubule cylinder absent from plants
  17. Phloem cell with no nucleus
  18. Engulfed bacteria becoming organelles
  19. How mitochondria divide, like bacteria
  20. Specialising via selective gene expression
  21. Splits frozen membranes down the middle
  22. Imaging flash-frozen proteins in solution
  23. Glowing antibodies used to tag proteins
  24. Fungal thread with no cross-walls

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