Unlike xylem (which is composed primarily of dead cells), the phloem is composed of still-living cells that transport sap. The sap is a water-based solution, but rich in sugars made by the photosynthetic areas. These sugars are transported to non-photosynthetic parts of the plant, such as the roots, or into storage structures, such as tubers or bulbs.
In vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), particularly sucrose, a sugar, to all parts of the plant where needed. In trees, the phloem is the innermost layer of the bark, hence the name, derived from the Greek word φλόος (phloos) "bark". The phloem is concerned mainly with the transport of soluble organic material made during photosynthesis. This is called translocation.
Phloem fibers provide structural support to the phloem tissue, helping it maintain its integrity and function in transporting sugars, hormones, and other nutrients throughout the plant. They also aid in defense mechanisms against pathogens and mechanical stress.
Phloem parenchyma cells provide structural support to the phloem tissue and help in the storage of starch, lipids, and proteins. They also facilitate the transport of organic compounds such as sugars and hormones within the plant.
The cambium is a layer of cells in plants that is responsible for lateral growth, producing new xylem and phloem cells. It plays a key role in secondary growth, increasing the width of stems and roots.
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.
Phloem is a type of plant tissue responsible for transporting sugars and nutrients throughout the plant. It is not visible to the naked eye as it is found inside the plant's vascular system. In general, phloem cells are tubular and elongated to facilitate the movement of nutrients.
the xylem transports water and the phloem transports organic substances.
Phloem provides a passage for the downward movement of the food manufactured in leaves to various parts of the plant.
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There is structural difference between xylem and phloem. This is because their function is also different. Had there been no difference in structure, how these could have performed different function?
produces xylem and phloem
They are made up of xylem and phloem. The xylem's primary function is to transport water, while the phloem transports nutrients.
Phloem fibers provide structural support to the phloem tissue, helping it maintain its integrity and function in transporting sugars, hormones, and other nutrients throughout the plant. They also aid in defense mechanisms against pathogens and mechanical stress.
Phloem parenchyma cells provide structural support to the phloem tissue and help in the storage of starch, lipids, and proteins. They also facilitate the transport of organic compounds such as sugars and hormones within the plant.
The phloem consists mainly of sieve tubes, companion cells, phloem fibers, and parenchyma cells. Sieve tubes are responsible for transporting sugars and other organic compounds, while companion cells support sieve tube function. Phloem fibers provide structural support, and parenchyma cells store nutrients.
Xylem's main function is to transport water and minerals from roots to other parts of the plant, while providing structural support. Phloem transports organic nutrients like sugars from photosynthesis to various parts of the plant for growth and energy storage.
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It supports the conductive cells of the phloem and provides strength to the stem.