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NEET Biology · Medium

Transport in Plants: Pressure gradient MCQ

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Pressure gradientMediumQuestion 10684

Question

At the sink, unloading of sucrose:

  1. A
    Lowers pressure and sustains mass flow
    Correct
  2. B
    Raises pressure indefinitely
  3. C
    Stops water entry at source
  4. D
    Seals sieve plates

Correct answer

Lowers pressure and sustains mass flow

Explanation

Pressure remains higher at source and lower at sink, maintaining flow.

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