Which of the following is not transported within the plant by the xylem and/or the phloem?
A. dissolved minerals
B. sucrose
C. growth-regulating hormones
D. water
E. starch
E. starch
Sugars produced from photosynthesis are transported from the source via the phloem to storage areas (sinks) within the plant. Some sugars are then converted to starch for storage. If the plant needs to access its sugar stores, the starch is converted back to transportable molecules like sucrose. Starch does not travel through the plant.
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