phloem structure
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Last updated 8:14 PM on 10/30/25
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4 Terms
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sieve tubes
most organelles lost: interior free to transport phloem sap.
2
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sieve plates
large pores: allows phloem sap to move between cells.
3
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What is an issue with sieve tubes not having organelles?
It isnt able to produce essential molecules such as ATP.
4
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companion cells
has nucleus and a lot of mitochondria so it can provide essential molecules to sieve tubes via plasmodesmata
Note 
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