Biology · Plant Anatomy
Xylem vessels possess specific structural features that adapt them for transporting water and dissolved minerals. Consider the following statements: A. Absence of end walls between individual xylem elements B. Lignified cell walls Choose the option that correctly describes the functional significance of these features.
- 1A allows water storage; B allows water to move freely inward and outward through active transport
- 2A allows continuous water column flow; B functions solely to prevent water loss from the xylem
- 3A allows lateral water storage; B makes vessels completely waterproof to prevent outward loss
- 4A allows continuous water column flow; B prevents vessels from collapsing inward under tension✓
Correct answer
A allows continuous water column flow; B prevents vessels from collapsing inward under tension
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