Xylem
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BIOLOGY
Plant Physiology
Xylem
Xylem's invisible water highways defy gravity to sustain towering trees and tiny plants alike
13 days ago
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What is the primary mechanism by which xylem transports water upward in plants?
Transpiration pull creating negative pressure
Active pumping by living cells in the xylem
Gravity pulling water down through the xylem
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BIOLOGY
Plant Physiology
Xylem
Xylem tissue, derived from ancient Greek meaning wood, is vital for water transport in plants
29 Jan 2026
0
What structural feature of xylem cells allows efficient upward water transport in vascular plants?
Hollow, tube-like cells such as tracheids and vessel elements
Thick-walled cells that store water internally
Cells with numerous chloroplasts to facilitate photosynthesis
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BIOLOGY
Plant Physiology
Xylem
Xylem tissue acts as nature's plumbing system, transporting water and nutrients upward in plants
27 Jan 2026
0
What is the primary function of xylem tissue in vascular plants?
To transport sugars and organic compounds from leaves to roots
To provide energy for cellular respiration in plant cells
To transport water and dissolved nutrients from roots to other parts of the plant
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