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which component of phloem is most important and why

Asked by tamanna 13th September 2013, 7:26 PM
Answered by Expert
Sieve tubes are the most important elements of phloem. They are slender, tube-like structures composed of elongated thin-walled cells, placed end to end. The main function of sieve tubes is to transport sugars and nutrients up and down the plant.
Answered by Expert 15th September 2013, 6:47 PM
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