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प्रश्न
Minerals absorbed by the roots travel up the xylem. How do they reach the parts where they are needed most? Do all the parts of the plant get the same amount of the minerals?
उत्तर
Minerals are transported to the required parts of the plant body. Once when the minerals enter the xylem, transpiration pull helps in their transportation. These minerals are transported passively and they enter the cell by active transport. More minerals are transported to the young and growing parts of the plant as they require more minerals for their growth
Minerals are also translocated from the senescent or old parts of the plant to required parts or to the young storage parts of the plant body, Hence optimum use of minerals takes place.
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संबंधित प्रश्न
Differentiate between Apoplast and Symplast pathways of movement of water in plants
How is the mycorrhizal association helpful in absorption of water and minerals in plants?
Which of the given statements are TRUE?
- Symplast pathway consists of non living parts of plant body, i.e. cell walls and intercellular spaces.
- In apoplast pathway, water movement is fast.
- In symplast pathway, water movement occurs along the interconnected protoplast through plasmodesmata.
Which one of the pathways of water movement involves cell wall and intercellular spaces?
Cytoplasmic streaming shown by ______.
Differentiate between Apoplast and Symplast pathways of water movement. Which of these would need active transport?
Give the location of casparian strip and explain its role in the water movement.
Correct the statements:
Most of the water flow in the roots occurs via the symplast.
Water is indispensable for life. What properties of water make it useful for all biological processes on the earth?
When a freshly collected Spirogyra filament is kept in a 10% potassium nitrate solution, it is observed that the protoplasm shrinks in size:
What will happen if the filament is replaced in distilled water?
