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Water Movement through a Membrane: The Van't Hoff Equation

By Lou Gross1, Monica Beals1, Susan Harrell1

University of Tennessee Knoxville

This module introduces the van't Hoff equation in the context of understanding the metabolic activity of the epithelial cells lining the stomach. It is intended for an introductory biology audience.

Listed in Teaching Materials | resource by group Quantitative Biology at Community Colleges

Version 1.0 - published on 15 Feb 2019 doi:10.25334/Q4F15M - cite this

Licensed under CC Attribution-ShareAlike 4.0 International according to these terms


Student Introduction: The movement of water into or out of cells is a common phenomenon in biological systems. Movement of water is often driven by osmosis: water moves from regions of low solute concentration to regions of higher solute concentration. For example, the digestive tract of many animals is lined with a single layer of epithelial cells, tightly connected cells that play a role in absorption and digestion. In the stomach, there is a net movement of water from the blood across the epithelial cells lining the stomach into the stomach lumen. Metabolic activity of the epithelial cells is responsible for this movement of water.


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