HORTICULTURE SCIENCE
ULTRA STRUCTURE OF PLANT CELLS AND ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Select which of the following statements are true for xylem.
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Tubular shape with no cross walls.
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Transportation of food and nutrients.
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Elongated, tubular shape with thin walled sieve tubes.
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Occupy the center of the vascular bundle.
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Water and mineral transport from roots to aerial parts of the plant.
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Explanation:
Detailed explanation-1: -Transpiration creates a suction pressure as a result of which water is forced into the xylem cells of roots. The effect of root pressure for transportation in plants is more important at night while during daytime transpiration pull becomes the major driving force.
Detailed explanation-2: -In plants, vascular tissue named xylem transports water and minerals from roots to shoots and leaves. Transportation of water takes place through tracheids and vessels, the dead cells of xylem.
There is 1 question to complete.