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)

https://www.teachengineering.org/activities/view/duk_cellresp_mary_act