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Function Companion Cells  Provide Metabolic Support Sieve Element

Companion cells provide metabolic support to sieve element cells and facilitate the active loading and unloading of sugars at source and sink tissues.

Companion cells provide metabolic support to sieve element cells and facilitate the active loading and unloading of sugars at source and sink tissues.

Front function of companion cells 
Back Provide metabolic support for sieve element cells and facilitate the loading and unloading of materials at source and sink

Tags: 9_2_phloem_transport

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