what is the function of sieve tubes and companion cells
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Sieve tubes members do not have ribosomes or a nucleus and thus need companion cells to help them function as transport molecules. ... It is the companion cells that helps transport carbohydrates from outside the cells into the sieve tube elements. The companion cells also allow for bidirectional flow.
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THEY HELP IN THE CONDUCTION OF FOOD WITHIN THE CELLS OF A PLANT, TO BE SPECIFIC THEY'RE PRESENT IN PHLOEM TISSUES AND ARE A PART OF THE TRANSPORTATION SYSTEM IN PLANTS.
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