<prompt> Phloem is a complex tissue, consisting of two main cell types, the sieve tubes and the intimately associated companion cells, together with parenchyma cells, phloem fibers and sclereids. Phloem tubes are joined end-to-end with perforated end-plates between known as sieve plates, which allow transport of photosynthate between the sieve elements. Phloem tube elements lack nuclei and ribosomes, and their metabolism functions and are regulated by the adjacent nucleate companion cells. The companion cells, connected to the sieve tubes plasmata via modem, are responsible for loading the sugemars with bryophytes. Phloem is a complex tissue, consisting of two main cell types, the sieve tubes and the intimately associated companion cells, together with parenchyma cells, phloem fibers and sclereids. Phloem tubes are joined end-to-end with perforated end-plates between known as sieve plates, which allow transport of photosynthate between the sieve elements. Phloem tube elements lack nuclei and  <response>: nhengo dzisinganyanyi kuoma dzine basa rakafanana 