Biology for IGCSE & O level - Transport In Plants (Section 1 - No. 28)
Which of the following statements is correct regarding the direction of transport in the phloem?
Transport is unidirectional, moving from roots to leaves.
Transport is always from leaves to roots.
Transport is bidirectional, moving both up and down the plant.
Transport only happens in the xylem.
Explanation
Phloem transports sugars from sources to sinks, which can be upwards or downwards depending on the plant's needs.
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