PLANTS
TRANSPORT IN PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it transports water from the leaves to the roots
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it transports amino acids from the roots to the leaves
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it transports sugar from the roots to the leaves
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it transports water from the roots to the leaves
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Detailed explanation-1: -Xylem functions as a conducting tissue for water and minerals from roots to the stem and leaves. It also provides mechanical strength to the plant parts. Water: Is absorbed from the soil through root hair cells.
Detailed explanation-2: -Correct answer: Xylem transports water from the roots of a plant to the leaves.
Detailed explanation-3: -The xylem is also composed of elongated cells. Once the cells are formed, they die. But the cell walls still remain intact, and serve as an excellent pipeline to transport water from the roots to the leaves. A single tree will have many xylem tissues, or elements, extending up through the tree.
Detailed explanation-4: -The xylem vessels transport the water up through the stem and into the leaves of the plant. The leaves have a high concentration of dissolved minerals produced from photosynthesis and an overall low water concentration. Water is thus transferred from the xylem vessels to the cells in the leaves via osmosis.
Detailed explanation-5: -Water from the soil enters the root hairs by moving along a water potential gradient and into the xylem through either the apoplast or symplast pathway. It is carried upward through the xylem by transpiration, and then passed into the leaves along another water potential gradient.