Agre
verified his hypothesis in anexperiment where he associated cells which includes
the protein with cells that did not have it. When the cells were placed
inside a water solution, those that had the protein inside their membranes
absorbed water by osmosis and increased up. Those that lacked the protein
were unaffected. He also conducted trials with artificial cells called
liposomes, which are a type of soap bubble surrounded by water on its extremities and also inside.
He figured out that the liposomes became permeable to water if the
protein was planted inside their membranes.
