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The driving force for the movement of materials in the phloem of plants is?
Wiki User
∙ 12y ago
Phloem ~ Pressure Flow Theory
The phloem tissue moves products of photosynthesis by active transport. The flow of materials in phloem is an active process that requires energy. The mechanism of flow is driven by an osmotic pressure gradient, generated by difference in sugar and water concentrations.
Just remember photosynthesis= water + sugar
water= osmosis sugar=gradient
Wiki User
∙ 10y ago
Wiki User
∙ 11y agoWhile movement of water and minerals through the xylem is driven by negative pressures (tension) most of the time, movement through the phloem is driven by positive hydrostatic pressures. This process is termed translocation, and is accomplished by a process called phloem loading and unloading. Cells in a sugar source "load" a sieve-tube element byactively transporting solute molecules into it. This causes water to move into the sieve-tube element by osmosis, creating pressure that pushes the sap down the tube. In sugar sinks, cells actively transport solutes out of the sieve-tube elements, producing the exactly opposite effect.
Hope this helps.
Wiki User
∙ 12y agoa difference in osmotic potential between the source and the sink
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What structure carries sugar from a plants leaves to the rest of the plant?
phloem.
What carries nutrients throughout plants?
There is a special tissue inside a plant's stem called xylem that consists of cells that are essentially tiny straws that pull water from the plant's roots up to the leaves. It is mostly dead tissue at maturity. Then there is phloem, which carries sugars created by photosynthesis from the leaves down to the roots. It is alive.
What term is defined as the movement of water from plants soil and oceans into the atmostsphere?
Evaporation.
How do plants and animals move Earth's surface materials from one place to another as they carry on their life processes?
Animals can dig holes and can kick up dirt i guess, and when roots grow from plants they can grow into cracks in rocks and cause them to break apart. I dont know the second way for plants to move the surface materials.
How does water travel witin a plant?
Assuming you mean vascular plants the transportation system here are the vascular tissues. The xylem moves water from the roots to the leaves. The phloem moves sugars, carbohydrates, from the leaves to everywhere in the plant needing these sugars.
The driving force for the movement of materials in the phloem of plants is what?
a difference in osmotic water potential between the source and the sink
Which tubes in a plant carry glucose?
Carbohydrates are moved about plants in the sieve tubesof the phloem.This movement of materials from one part of a plant to another is called translocation. Carbohydrate is normally translocated as sucrose. If you inject glucose or fructose into a plant, it will probably be converted into sucrose before translocation.
What are The types of vascular tissue inside plants that transport energy from photosynthesis and materials from the roots to the rest of the plant are called?
The types of vascular tissues are called xylem and phloem. Phloem cells transport energy from photosynthesis and xylem transport materials from the roots to the rest of the plant. These plants are called autotrophs.
Is phloem in a plant or in an animal?
Phloem is found in plants.
Do Vascular plants have phloem?
Phloem as well as xylem
What fibers surround the xylem and phloem tissues?
The xylem and the phloem tissues are found in plants. Bast fibers surround the xylem and the phloem tissues in plants.
What fibers surrounds the xylem and phloem?
The xylem and the phloem tissues are found in plants. Bast fibers surround the xylem and the phloem tissues in plants.
What plant have xylem and phloem tube?
Vascular plants. Xylem and Phloem are the vascular system of plants. If you compare it with humans, they're the blood vessels...sort of Xylem transports water, Phloem transports nutrients
How do plants move the materials?
They have tubes in them called the xylem and phloem tubes. The xylem tubes carry water and mineral salts from the roots to all parts of the plant. The phloem which carry food from the leaves to all aprts of the plant.
Which is vascular tissue in plants?
Phloem
Do vascular plants have xylem and phloem?
Yes, but some plants lack certain types of xylem and phloem cells such as vessel elements and tracheids. Tracheids have been lost in Wolffia, an aquatic plant, and vessels are not present in all conifers.
What distinguishes xylem and phloem from other tissues?
Xylem and phloem are vascular tissues. They are tissues that form tubes in plants. Xylem carries water and minerals contained in water that is drawn up from the ground through the roots. Phloem carries food produced in leaves down and up to other parts of plants. In trees, the phloem is located just inside the bark. It is a fairly narrow region. The part of trees called wood is the xylem. A layer called the vascular cambium is located between the xylem and phloem. It produces xylem to the inside and phloem to the outside. Growth rings in tree trunks are xylem. Plants like mosses, liverworts and horn worts don't have vascular tissues. Water, minerals, and food move around these plants very slowly. The movement is from one cell to another then another, and so on. Nonvascular plants are small and must grow in moist places. Vascular plants are larger because materials can move around in them quickly.
