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Digestion

 by Dr. Ingrid Waldron, Department of Biology, University of Pennsylvania, CC-BY-NC 4.0.

 

The Student Handout provides information and questions to guide students in designing the first experiment, which evaluates two indicator solutions to see whether they can be used to test for starch and/or for protein. Then, students use the results from the first experiment and inductive reasoning to formulate hypotheses concerning which types of food contain starch and which types of food contain protein (some or all foods derived from animals or plants or both). Next, students use deductive reasoning based on their hypotheses to make predictions for a second experiment to test their hypotheses. Finally, students carry out the second experiment and use the results to evaluate their hypotheses and, if necessary, modify these hypotheses.

 

Alternatively, experiment could also be used in the BI 101 sequence as part of the intro to chemistry.