Arrange the following five events in an order that explains the mass flow of materials in the phloem. Water diffuses into the sieve elements. Leaf cells produce sugar by photosynthesis. Solutes are actively transported into sieve elements. Sugar is transported from cell to cell in the leaf.
Sugar moves down the stem.
Assume a particular chemical interferes with the establishment and maintenance of proton gradients across the membranes of plant cells. C. xylem transport. A. growing leaf b. growing root c. storage organ in summer d. mature leaf e. shoot tip 16. It is used as a solvent. It is used as a hydrogen source in photosynthesis.