Movement phloem sap from a source to a sink a. occurs
Chapter 0, Problem 9(choose chapter or problem)
Movement phloem sap from a source to a sink a. occurs through the apoplast ofsieve-tube elements. b. may tnlnslocate sugars from the breakdown ofstored starch in a root up to developing shoots. c. depends on tension, or negative pressure potential. d. depends on pumping water into siew tubes at the source. e. results mainly from diffusion.
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