Grade 7 Exam > Grade 7 Questions > How do plants transport water and nutrients f...
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How do plants transport water and nutrients from the soil to other parts of the plant?
- a)Through their leaves
- b)Through their stems using xylem vessels
- c)Through their flowers
- d)Through their roots using phloem tissue
Correct answer is option 'B'. Can you explain this answer?
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How do plants transport water and nutrients from the soil to other par...
Plants have a special system called xylem vessels that act like pipes to carry water and nutrients from the soil to all parts of the plant. Just like how pipes carry water in our homes, xylem vessels in plants transport water to help them grow big and strong.
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How do plants transport water and nutrients from the soil to other par...
Water and Nutrient Transport in Plants
Plants rely on specialized structures to transport water and nutrients effectively. The correct answer is option 'B': through their stems using xylem vessels.
Understanding Xylem Vessels
- Xylem is a type of vascular tissue in plants.
- It is responsible for the upward transport of water and dissolved minerals from the roots to the rest of the plant.
- The structure of xylem vessels is designed to facilitate efficient water movement.
How Water Moves Through Xylem
- Water absorption occurs in the roots, where tiny root hairs increase surface area.
- Once absorbed, water travels through xylem vessels via capillary action and transpiration pull.
- Transpiration, the process of water evaporation from leaves, creates a negative pressure that helps draw water upward.
Nutrient Transport
- Along with water, essential nutrients dissolved in it are transported through xylem.
- Nutrients such as nitrogen, phosphorus, and potassium are vital for plant growth and development.
Comparison with Other Options
- Option 'A' (Through their leaves) is incorrect as leaves primarily perform photosynthesis, not transport.
- Option 'C' (Through their flowers) is also incorrect; flowers are mainly for reproduction.
- Option 'D' (Through their roots using phloem tissue) is misleading because phloem is responsible for transporting sugars and organic nutrients, not primarily water.
Conclusion
In summary, xylem vessels play a crucial role in transporting water and nutrients throughout the plant. This efficient system ensures that all parts of the plant receive the necessary resources for growth and survival.
Plants rely on specialized structures to transport water and nutrients effectively. The correct answer is option 'B': through their stems using xylem vessels.
Understanding Xylem Vessels
- Xylem is a type of vascular tissue in plants.
- It is responsible for the upward transport of water and dissolved minerals from the roots to the rest of the plant.
- The structure of xylem vessels is designed to facilitate efficient water movement.
How Water Moves Through Xylem
- Water absorption occurs in the roots, where tiny root hairs increase surface area.
- Once absorbed, water travels through xylem vessels via capillary action and transpiration pull.
- Transpiration, the process of water evaporation from leaves, creates a negative pressure that helps draw water upward.
Nutrient Transport
- Along with water, essential nutrients dissolved in it are transported through xylem.
- Nutrients such as nitrogen, phosphorus, and potassium are vital for plant growth and development.
Comparison with Other Options
- Option 'A' (Through their leaves) is incorrect as leaves primarily perform photosynthesis, not transport.
- Option 'C' (Through their flowers) is also incorrect; flowers are mainly for reproduction.
- Option 'D' (Through their roots using phloem tissue) is misleading because phloem is responsible for transporting sugars and organic nutrients, not primarily water.
Conclusion
In summary, xylem vessels play a crucial role in transporting water and nutrients throughout the plant. This efficient system ensures that all parts of the plant receive the necessary resources for growth and survival.
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How do plants transport water and nutrients from the soil to other parts of the plant?a)Through their leavesb)Through their stems using xylem vesselsc)Through their flowersd)Through their roots using phloem tissueCorrect answer is option 'B'. Can you explain this answer?
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