Water potential (ψ) can be thought of as the tendency for water to move from one place to another. in plants, it is made up mainly of solute potential and pressure potential. hypothetical plant cells a and b are adjacent to each other. the solute potential (ψs) of cell a is −0.35 mpa, and its pressure potential (ψp) is +0.15 mpa. the solute potential (ψs) of cell b is −0.30 mpa, and its pressure potential (ψp) is +0.05 mpa. in which direction will net water movement occur?

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.