Title: Construction of a Phloem Pressure-Flow Model
Url: http://www.ableweb.org/volumes/vol-37/v37reprint.php?ch=23
Author: Susanne Altermann
Author's Address: Whitman College, Department of Biology, Walla Walla, WA
Email Address: altermsm@whitman.edu
Description: 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.
Keywords: phloem
osmosis
plant physiology
pressure-flow hypothesis
Topic: Plant Sciences -- Plant Physiology
BEN Subject/Discipline Taxonomy: Botany & Plant Science
Learning Resource Type: Laboratory exercise (DCMI Type Vocabulary)
Context: Undergraduate lower division 13-14
Format: enriched
pdf
Access Rights: This resource is for ABLE members only.
Rights: http://www.ableweb.org/copyright-policy/
Conference Location & Year: Boston University (2015)
Cumulative Rating: NOT YET RATED
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