Biology / Unit 11 Bio 2549 worked example, 60 to 90 seconds
Tracing Water and Photosynthate Transport, Worked
Captions available
The idea
This procedure traces one plant's water and sugar movement from soil uptake through xylem ascent to phloem delivery at a growing sink.
Where people slip
Confusing the two systems' direction is the most common error — xylem flow runs only upward, while phloem flow runs toward whichever sink needs sugar, sometimes downward and sometimes upward in the same plant at once.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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