Tested Studies in Laboratory Teaching, 2016, Volume 37
Susanne Alterman
Abstract
Students build artificial cells that model phloem sap transport. Students observe a working two-cell pressure-flow model and then build their own model from materials available in the laboratory. Students use trial and error to get their apparatus to work well enough to cause overflow of one of the beakers. Discussion questions guide students in their understanding of pressure-flow as they build the model. Students gain confidence in the construction of customized equipment and in their understanding of source-to-sink flow of carbohydrate-rich phloem sap.
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