First the water is absorbed by the root hair cell....then by the process of osmosis the water is transported to stem then the water has to be traveled through stem...this part is called capillarity action.the previous action is called root pressure....then the water will travel through a certain height....next the water should be traveled to leaf... This part is called transpiration pull....the water in evaporated from the leafs called transpiration...so the water is pulled from the stem to the leaf... The water is transported from the root hair cell from the stem to the leaves and used for photosynthesis.....I hope this much is enough for you.... Hope you got the answer :)
1.Water drawn into the roots from the soil by OSMOSIS moves up the stem. 2. The loss of water creates a pull that draws water up through the xylem. 3. Water vapor exits the leaves through stomata by transpiration.
Water moves up plants from roots to leaves in a variety of ways...
To be honest, scientists are not sure on the exact method by which water moves up plants. There are three methods which are present, but each on their own is probably not strong enough to force water up the largest plants. As a result its probably a combination of all three of the following methods which is responsible for the transport of water up plants....
Cohesion-tension theory - here the effect of water evaporating at the top of the column at the leaves creates a tension which pulls water up to take its place. This tension pulls the water molecules upwards, and due to the presence of the hydrogen atoms in the water molecules, they tend to 'stick' together, and so the whole water column is pulled upwards.
Root Pressure - since water enters the plant through its roots at the bottom, this creates a pressure at the bottom of the water column which pushes it upwards.
Capilliarity - this is when water moves up a thin tube. In plants this occurs due to the attraction between the water molecules and the inside of the xylem tube.
Plants get water and minerals etc from their roots and then it travels from the roots to the stems and then the leaves. Finally this water evaporates through the leaves. This is the basic function of Transpiration common in every plant. Due to transpiration water and minerals are constantly lose by the leaves of the plant and so more water is pulled up by the plant due to negative pressure from the leaves. Thus water moves upward through planst. For details see the link below: users.rcn.com
Absorption of water and mineral salt take place mainly in the area of the root hair. Each root hair is a fine tube like out-growth of the epidermal cell. It grows in the soil particles. Hence it comes in close contact with the water present in the soil. Dissolved mineral salts are present in the soil water. Therefore the water surrounding each root hair is a dilute solution of mineral salts. Due to a high surface area: volume ratio of the root hair, the rate of water and mineral absorption is enhanced.
The sap (plant juice) present in the root hair cell comprises of a relatively strong solution of sugars and various salts. The amount of water in the sap is therefore lower than the soil solution (the sap has a lower water potential). Due to this low water potential and the semi permeable membrane of the root hair cell, water enters in the plant by the process of osmosis. The sap of the cell now becomes more dilute than the sap of the next root hair cell.
Hence water passes by osmosis from the root hair cell into the inner cell. Similarly the water passes from the inner cells to the cortex. This transfer process continues till water enters the xylem vessels and travels up the plants.
Xylem is one of the two types of transport tissue, phloem being the other.
Transport tissue found in vascular plants, whose main function is to conduct water and dissolved mineral nutrients from the roots to other parts of the plant. The water is ultimately lost by transpiration from the leaves
In trees, the phloem is the inner most layer of the bark. The phloem is mainly concerned with the transport of soluble organic material made during photosynthesis.
First, water is sucked up by the roots. Next, it goes up the stem. Then, the leaves absorb it, carbon dioxide, and sunlight. Finally that makes a sugar that the plant eats.
The roots suck up the water and distributes it through out the plant using their veins in the leaves, use food coloring and watch it go through the process
When you water plants the plant's leaves absorb the water so that the water goes in the plant and then when it gets into the plant it goes through the root system which the water is going down.
The shoot system takes a part into this because when the root hairs on the end of the root absorb some particles it gives the energy it needs from the glucose it gets and the plant needs energy to live.
Three processes that move water through the plant are capillary action, transpiration, and root pressure which moves water through the xylem.
Xylem is one of the two types of transport tissue, phloem being the other.
Transport tissue found in vascular plants, whose main function is to conduct water and dissolved mineral nutrients from the roots to other parts of the plant. The water is ultimately lost by transpiration from the leaves
In trees, the phloem is the inner most layer of the bark. The phloem is mainly concerned with the transport of soluble organic material made during photosynthesis.
Plants have a vascular bundle for the transportation of water and food in the plant. The vascular bundle is a tissue which consists of xylem and phloem. Xylem is responsible for the transportation of water in the plant and phloem is responsible for the transportation of food. Xylem takes water from the roots of the plant and transfer this water to the leaves and other parts of the plant. Root absorbs water through root hairs on the root cap from the soil through absorption because of concentration gradient.
