The water potential of pure water is zero. What is the effect of adding some solute molecules to the water potential of pure water?

_____ force water to move through the cytoplasm of living endodermal cells as it makes its way from the soil to the xylem.

Which pair of cells is primarily responsible for the transport of sugars in angiosperm phloem tissue?

Which sequence correctly describes events occurring at a source during translocation?

From the following four descriptions, identify the ones that are true regarding sugar transport:

 P. Sugar is mainly transported by pressure flow. 

Q. Sugar transport is due to an osmotically generated pressure gradient. 

R. Sugar transport is always from leaves to fruits. 

S. Sugar is transported by phloem.