Biology  by Bradford
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D3.1 Reproduction: grass skirts

24 quick questions on reproduction, 16 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. One parent, genetically identical young
  2. Fusion of sperm and egg nuclei
  3. Organ where sperm are made
  4. Muscular organ where a foetus develops
  5. Transfer from anther to stigma
  6. Part of a stamen that makes pollen
  7. Sticky surface that receives pollen
  8. Seed starting to grow into a seedling
  9. Exchange organ between mother and foetus
  10. Where sperm usually meets the egg
  11. Pituitary signal that ripens a new egg
  12. Its mid-cycle surge triggers ovulation
  13. Follicle hormone that rebuilds the lining
  14. Corpus luteum hormone keeping the lining
  15. Eggs and sperm combined in a lab dish
  16. Moving offspring away from parent plants
  17. Female gamete production in the ovary
  18. Male gamete production in the testes
  19. Change that blocks a second sperm entering
  20. Embryo hormone detected by pregnancy tests
  21. Hormone of contractions in childbirth
  22. Oestrogen treatment after the menopause
  23. Rejection of a plant's own pollen
  24. Hypothalamus signal that rises at puberty

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