water moves freely through the semipermeable membrane
Click next page to see how plants can use this system to circulate sap.
The right side has a sugar solution. Because water always flows from high potential (pure water) to lower potential (the hypertonic sugar solution), the level on the right side rises and pressure (osmotic) increases.
The sugar molecules are too large to pass through the semipermeable membrane.
water moves freely through the semipermeable membrane
Click next page to see how plants can use this system to circulate sap.