Phloem is a living tissue in plants, responsible for transporting nutrients, particularly sugars produced through photosynthesis, from leaves to other parts of the plant. The primary components of phloem, such as sieve elements and companion cells, are alive at maturity, allowing for the active transport of substances. However, the sieve tube elements lose their nucleus and most organelles as they mature, but they still function as living cells.
No, mature phloem tissue is not dead upon maturity. Phloem tissue remains alive and functional, aiding in the transport of sugars and other organic compounds throughout the plant. The cells in mature phloem tissue are specialized for this function and typically stay alive for an extended period.
Yes, Phloem cells are alive.
dead phloem causes bark to formon atree
No xylem die at maturity but phloem stays alive all the time the plant is alive.
No
Yes, dead phloem cells contribute to the outer protective layer of a tree known as bark. The outermost layer of bark is primarily composed of dead cells, including dead phloem tissue, that provide protection from environmental factors and pathogens.
yes
Dead xylem cells are called "tracheids" or "vessel elements," while dead phloem cells are called "sieve cells" or "sieve tube members."
There is a layer of living Phloem and there is a layer of living xylem. Both these layer produce dead tissue, the Phloem produces bark (dead protective outer layer), the xylem produces wood (dead supportive inner layer). Both the wood and the bark are dead. It is only the two thin layers of Phloem and Xylem that are alive.
The dark center of a stem or root that is dead
Dead phloem on a tree is called "inner bark" or "bast." It serves to transport nutrients within the tree but is no longer living tissue once it dies.
Yes, phloem is living tissue, xylem tends to be woody and dead.