Xylem is a carrying vessel. It carries the water, minerals, salts , and other goods to the lief. Thus the photosynthesis process get complete. Except the co2 and o2, and the photon particles all other things for photosynthesis are carried from soil to lief by xylem vessel.
The plants which have the ability to transport minerals through vascular tissues are called tracheophytes. There are two types of vascular tissues in tracheophytes for the conduction of food. These vascular tissues are named as xylem and phloem. These tissues transport minerals, water and products to the plant which are necessary for photosynthesis. Xylem absorbs water from the soil with the help of roots and root hairs. Then it transfers this water to the higher parts of the plant. On the other hand, food is transferred with the help of phloem. Moreover, this conduction takes place by osmosis and transpiration pull.
The movement of water and dissolved nutrients up the xylem vesicles is due to the result of the transpiration stream. This is where the water that gets evaporated through the stomates creates a concentration gradient across the leaf which allows a 'suction power' to be forced upon the water and nutrients in the xylem tissue. It is this suction force that allows the movement of these fluids/substances up the xylem tissue; (it is like the pump mechanism (heart) in animals).
Xylem is a type of vascular tissues present in flowering plants. It is responsible for the transport of materials in the plants. The xylem tissue has two main functions. It is used to conduct water, along with its dissolved mineral salts, from the roots to the stems and leaves of the plant. Xylem also provides mechanical support in the plant.
Then xylem consists mainly of vessels. A vessel is a long hollow tube stretching from the root to the leaf of the plant. The hollow space, also called the lumen, in the xylem is continuous. The wall of the vessel is strengthened by the deposition of a substance called lignin on it. Lignin can be deposited in either the form of rings or spirals. The part of the vessel that is not lignified is called the pit.
The continuity of lumen without any partition wall or protoplasm allows water and mineral salts to be transferred from the roots of the plant to the leaves without any hindrance. The lignified walls prevent the vessel from collapsing. These vessels collectively provide mechanical support to the plant.
The xylem fibers from sisal plants are used to make hard ropes.
The movement of water and dissolved nutrients up the xylem vesicles is due to the result of the transpiration stream. This is where the water that gets evaporated through the stomates creates a concentration gradient across the leaf which allows a 'suction power' to be forced upon the water and nutrients in the xylem tissue. It is this suction force that allows the movement of these fluids/substances up the xylem tissue; (it is like the pump mechanism (heart) in animals).
