Differentiate between transport of materials in xylem and phloem?.,.,( not between xylem and phloem) (5 marks)?

Question

Answer

$$---Xylem help in transport of water and minerals ....... WHILE.......Phloem help in transport of food ...... $$---Water is transported upward from roots to aerial parts of plants....... WHILE..........Food is transported in both upward and downward direction....... $$----Transport of water in xylem requires physical pull like transpiration pull........ WHILE........ Transport of food in Phloem requires energy in form of ATP....

Answer

Vascular tissue is the tissue in plants which helps in transportation... there r 2 types of vascular tissues... 1.xylem 2.phloem xylem helps in transporting water and minerals from roots to all other parts of the plant... phloem helps in transporting food from leaves to all other parts of the plant...it even transports upto a height of 300 ft

Answer

Xylem transport water and minerals while phloem transport food and other substances. Xylem transportation is done by simple physical forces like - diffusion and osmosis while ATP is required for transportation of food and other substances. Xylem is unidirectional (upwards) while phloem is bidirectional (both upward nd downward).

Answer

●Xylem1.Water and mineral transport in plant 2.Uni-directional (upwards)3.Dead tissue with no cell content.4.Present in centre of vascular bundle. 5.Tracheids present .●Phloem1.Transport of food and nutrients 2.Bidirectional ( upwards and downwards )3. Living tissue with no nucleus but having cytoplasm .4.Present on Outer side of vascular bundle.5. Sieve tubes present.

Answer

Transport of Materials in Xylem and Phloem

Transport Mechanism:
- Xylem: The transport of water and minerals in xylem occurs through a process called transpiration. Water is absorbed by the roots and moves up through the xylem vessels due to the cohesive and adhesive properties of water.
- Phloem: The transport of organic compounds such as sugars in phloem occurs through a process called translocation. Sugars are produced in the leaves through photosynthesis and are then transported to other parts of the plant through the phloem.

Direction of Transport:
- Xylem: The transport in xylem is unidirectional, moving from the roots to the shoots of the plant. This movement is driven by transpiration and the pull of water from the roots.
- Phloem: The transport in phloem can be bidirectional, as it can move sugars both upwards (source to sink) and downwards (sink to source) in the plant.

Components Transported:
- Xylem: Xylem primarily transports water and minerals absorbed by the roots from the soil. These nutrients are essential for plant growth and development.
- Phloem: Phloem transports organic compounds such as sugars, amino acids, and hormones. These substances are vital for energy production and signaling within the plant.

Speed of Transport:
- Xylem: The transport of water in xylem is relatively fast, as it is driven by transpiration and the cohesive properties of water.
- Phloem: The transport of organic compounds in phloem is slower compared to xylem, as it relies on the active transport mechanisms of sieve tubes and companion cells.

Regulation:
- Xylem: The transport of water in xylem is mainly regulated by environmental factors such as temperature, humidity, and light intensity.
- Phloem: The transport of organic compounds in phloem is regulated by the demand for nutrients in different parts of the plant, as well as hormonal signals.

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