O Levels Biology (5090)•5090/12/O/N/20

Explanation
Phloem transports sugars in dicot roots and stems
Steps:
- Recall that phloem tissue conducts sugars in plants via translocation.
- In dicot root cross-section, identify phloem as the region outside xylem, labeled K.
- In dicot stem cross-section, identify phloem as bundles outside xylem, labeled M.
- Confirm K and M match phloem locations for sugar transport.
Why A is correct:
- Phloem, by definition, transports organic compounds like sugars from sources to sinks.
Why the others are wrong:
- B: L is xylem, which transports water, not sugar.
- C: L is xylem in root; M is phloem in stem, but both must transport sugar.
- D: L and N are xylem regions, not involved in sugar transport.
Final answer: A
Topic: Transpiration and translocation
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