Osmosis, functional model

Function and Applications

According to Bishop. The diameter of each model is 10 cm. The imitation of Brownian molecular motion is demonstrated. Instead of small water molecules passing through a semi-permeable cell membrane, small beads find passage through a finely perforated partition by shaking movements. However, the larger beads, representing salt molecules, are prevented from passing through. A saturation of the subconcentration occurs when the

"water molecules" are present in equal concentrations on both sides of the "membrane". Increased osmotic pressure.

3 teaching models + teacher info.