A student formulated a hypothesis that water-soluble pollutants damage living organisms by increasing the permeability of cellular membranes. To test the hypothesis, the student investigated the effect of isopropanol and acetone on beet root cells. The vacuoles of beet root cells contain large amounts of betacyanin, a water-soluble pigment that is released into the extracellular environment as a result of increased membrane permeability.

Yes, the hypothesis formulated by the student is true.

Explanation:

Water soluble pollutants has a great effect on the permeability of the cell. Higher permeability of the cell is dangerous for the cellular structure. Higher concentration of betacyanin around the beet root cells which is responsible in more absorbance of 460 nm light, this absorbance occurs due to the damage of permeability of the cell because of water soluble pollutants. So the hypothesis made by the student about water soluble pollutants is true  and valid.

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!