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The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves. The phloem carries food downward from the leaves to the roots.
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Comparison of transport in the xylem and phloem.
| Xylem | Phloem | |
|---|---|---|
| Direction of transport | Upwards | Upwards and downwards |
| Xylem | Phloem |
|---|---|
| Movements | |
| These tissues move in a Unidirectional. (only in one direction – upward direction) | These tissues move in a Bidirectional. (both ways – up and down) |
| Comprises | |
| They live with hollow dead cells. | They live with cytoplasm without the nucleus. |
Table of Contents
What direction does the xylem tissue move?
The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves. The phloem carries food downward from the leaves to the roots.
What is the direction of movement in xylem and phloem?
| Xylem | Phloem |
|---|---|
| Movements | |
| These tissues move in a Unidirectional. (only in one direction – upward direction) | These tissues move in a Bidirectional. (both ways – up and down) |
| Comprises | |
| They live with hollow dead cells. | They live with cytoplasm without the nucleus. |
Xylem and Phloem – Transport in Plants | Biology | FuseSchool
Images related to the topicXylem and Phloem – Transport in Plants | Biology | FuseSchool
How the xylem is different from the phloem?
Plants have tissues to transport water, nutrients and minerals. Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.
How does xylem transport water?
The tension created by transpiration “pulls” water in the plant xylem, drawing the water upward in much the same way that you draw water upward when you suck on a straw. Cohesion (water sticking to each other) causes more water molecules to fill the gap in the xylem as the top-most water is pulled toward the stomata.
How is the movement of water through the xylem different from the movement of food through the phloem in the stem?
Xylem transports water and soluble mineral nutrients from roots to various parts of the plant. It is responsible for replacing water lost through transpiration and photosynthesis. Phloem translocates sugars made by photosynthetic areas of plants to storage organs like roots, tubers or bulbs.
What is the direction of movement in phloem in plants?
Sugar has to be transported to the growing buds upwards as well as to the roots downwards, hence, the movement of sugars in phloem is bi-directional.
Which of the following is unidirectional transport?
Xylem is unidirectional in terms of transportation, meaning the flow of water molecules takes place from the roots towards the top of the plant. Bidirectional movement means the movement of molecules in two opposite directions.
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Lesson Explainer: Transport in the Xylem | Nagwa
The main function of the xylem vessels is to transport water in one direction, upward from the roots, through the stem, and to the leaves. Xylem vessels are …
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The xylem wall is also polar and hence can form intermolecular associations with water molecules; As water molecules move up the xylem via capillary action, …
Xylem and Phloem – Tissue Systems Found in Vascular Plants
Any substance transported by xylem has unidirectional movement meaning that it can only travel in one direction: upwards.
What is the direction of transportation in xylem? – idswater.com
These tissues move in a Unidirectional. (only in one direction – upward direction) …
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What does the xylem do?
xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. Xylem tissue consists of a variety of specialized, water-conducting cells known as tracheary elements.
How does xylem transport water and nutrients?
Main function – upwards water transport. The xylem, vessels and tracheids of the roots, stems and leaves are interconnected to form a continuous system of water-conducting channels reaching all parts of the plants. The system transports water and soluble mineral nutrients from the roots throughout the plant.
How is transport in the xylem different from that in the phloem in terms of energy?
So, the correct answer is ‘Xylem transports water and minerals absorbed by roots whereas phloem transports food prepared by leaves. ‘ Note: Xylem has two separate chambers tracheids and vessels for transporting minerals and water. The transportation of food through phloem requires energy in the form of ATP.
What mechanism is responsible for moving water in the xylem?
Movement in the xylem is by mass flow of the whole solution, and the force is either the tension pull of transpiration or root pressure, or both. In general, however, water movement in the xylem is by transpiration pull.
How are xylem and phloem arranged in the stem and leaves?
The vascular bundles are arranged near the edge of the stem, with the phloem on the outside and the xylem on the inside.
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Which feature of transport in plants is correct for both xylem and phloem?
Companion cells use ATP to move hydrogen ions out of the cell and co-transporter proteins to allow hydrogen ions to return with sucrose molecules. Which two processes are involved in this movement? Which feature of transport in plants is correct for both xylem and phloem? A It is passive.
How does the placement of xylem and phloem change between the root stem and leaf?
– In the roots, xylem and phloem are in the centre to withstand stretching forces. – In the stems, they are arranged in bundles near the edge to resist compression and bending forces. – They are grouped together into veins and vascular bundles as they pass through leaves.
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