0
Root pressure tries to keep the water flowing but transpiration loses water from the leaves
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What are the two forces that move water through the xylem?
transpiration and root pressure
What three mechanisms are involved in water movements in plants?
Transpiration and root pressure are the only two I can think of.
What forces cause upward movement in a plant?
I'm pretty sure that it's been proven that root pressure has very little to do with water movement in plants. Water moves up because it's constantly evaporating from the leaves and so it get sucked upwards (not pushed upwards). That is called transpiration.
What force helps move water up through plants?
Capillary action, transpiration, and root pressure move water up through the plant.
What is it called when water goes up the stem?
Root pressure is what causes water to rise from the roots to the stems. Water travels through the xylem throughout the plant.
What are the two forces that move water through the xylem?
transpiration and root pressure
What three mechanisms are involved in water movements in plants?
Transpiration and root pressure are the only two I can think of.
What is the root word for transpiration?
transpire
What is the root word of transpiration?
The root word of transpiration is "transpire," which comes from the Latin word "transpirare" meaning "to breathe through" or "to evaporate."
What force helps water move through plants?
Capillary action, transpiration, and root pressure move water up through the plant.
What forces cause upward movement in a plant?
I'm pretty sure that it's been proven that root pressure has very little to do with water movement in plants. Water moves up because it's constantly evaporating from the leaves and so it get sucked upwards (not pushed upwards). That is called transpiration.
What force helps move water up through plants?
Capillary action, transpiration, and root pressure move water up through the plant.
What combination of factors provides enough force to move water through the xylem tissue of even the tallest plant?
Root pressure, capillary action, and transpiration
How does root pressure assist in water uptake?
Transpiration. It's a bit like upthrust but for water traveling up through plants. The insides of the plant closes up so it can travel.
What is it called when water goes up the stem?
Root pressure is what causes water to rise from the roots to the stems. Water travels through the xylem throughout the plant.
What role do root hairs play in the process of transpiration?
They increase surface area . They create a covering with air. It reduces transpiration rate
Why do the roots of some aquatic plants become reduced or at times absent?
Root pressure is osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves.Root pressure occurs in the xylem of some vascular plants when the soil moisture level is high either at night or whentranspiration is low during the day. When transpiration is high, xylem sap is usually under tension, rather than under pressure, due to transpirational pull. At night in some plants, root pressure causes guttation or exudation of drops of xylem sap from the tips or edges of leaves. Root pressure is studied by removing the shoot of a plant near the soil level. Xylem sap will exude from the cut stemfor hours or days due to root pressure. If a pressure gauge is attached to the cut stem, the root pressure can be measured.Root pressure is caused by active distribution of mineral nutrient ions into the root xylem. Without transpiration to carry the ions up the stem, they accumulate in the root xylem and lower the water potential. Water then diffuses from the soil into the root xylem due toosmosis. Root pressure is caused by this accumulation of water in the xylem pushing on the rigid cells. Root pressure provides a force, which pushes water up the stem, but it is not enough to account for the movement of water to leaves at the top of the tallesttrees. The maximum root pressure measured in some plants can raise water only to about 7 meters, and the tallest trees are over 100 meters tall.
