This project was prepared as part of a BioQUEST faculty development workshop entitled BioQUEST Summer 2008 Faculty Workshop Problem Solving in Biology: Data, Tools and Resources from Plant Science at Southeast Missouri State University in June 2008. The BioQUEST Curriculum Consortium is committed to the reform of undergraduate biology instruction through an emphasis on engaging students in realistic scientific practices. This approach is sometimes characterized as an inquiry driven approach and is captured in BioQUEST's three P's (problem-posing, problem-solving, and peer-persuasion). As part of this workshop groups of faculty were encouraged to initiate innovative curricular projects. We are sharing these works in progress in the hope that they will stimulate further exploration, collaboration and development. Please see the following links for additional information:

Upcoming events               BEDROCK Problem Spaces

Anthocyanin as an Acid/Base Indicator--Activity Series
Authors          Audiences          Overview           Materials          Resources           Future Directions




Possible Audiences:

Chemistry/Biology Teachers The activities are geared toward high school or college students.  


Brief Overview:

Three activites are presented based around the natural plant pigment anthocyanin as an acid/base indicator. In Activity 1 students utilize plant pigment chormatography In Activity 2 students extract anthocyanins and use them to formulate a qualitative pH scale In Activity 3 students use a natural acid/base indicator during a titration. This activity utilizes pH probes and excel to generate a titration curve. The activities create an opportunity to link inorganic chemistry concepts with examples from the biological world. This may help with student interest.  


Project Materials:

Materials are provided within the activity links.  


Resources and References:

References are linked.