A hands-on activity in which students simulate a lactose tolerance test similar to the one shown in the film. Students will combine milk with "patients' intestinal fluid samples," which consist of either water or a lactase solution. They then measure the amount of glucose produced over time. Students will collect, analyze, and graph their data to determine which patients are lactose tolerant or lactose intolerant.
Note: This lab was initially posted in June 2013 and updated April 2015 to incorporate feedback from field testers.