Materials List: Yeast Cells Respire, Too
(But Not Like Me and You)

  • large test tubes, about 15 cm long and 20 mm in diameter; one per student
  • small test tubes, about 10 cm long and 8 mm in diameter; one per student
  • squares cut from plastic wrap, about 8 cm on a side; one per student
  • several rubber or cork stoppers, size 2
  • test tube racks to hold large test tubes
  • several dropping pipettes
  • five 300-ml beakers
  • 1-liter flask
  • 1-liter graduated cylinder
  • lab thermometer
  • package dry baking yeast (available in grocery stores)
  • 12-ounce bottle molasses (unsulphured)