Osmosis, functional model

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.