How can data from experiments with aphid stylets and radioactively-labelled carbon dioxide help analyze phloem transport rates?

How can xylem and phloem be identified in microscope images of stems and roots?

What are the structure-function relationships of phloem sieve tubes?

How does increased hydrostatic pressure cause the contents of the phloem to flow toward sinks?

How do high solute concentrations in the phloem at the source lead to water uptake by osmosis?

Why is active transport used to load organic compounds into phloem sieve tubes at the source?

How does the incompressibility of water allow transport along hydrostatic pressure gradients?

How do plants transport organic compounds from sources to sinks?

How can models serve as representations of real-world mechanisms in water transport through the xylem?

How would you design an experiment to test the effects of temperature or humidity on transpiration rates?