BI-2117
Translocation
Biology · Secondary 4 · Medium · Translocation
In an experiment, a plant stem is ringed by removing a strip of bark containing phloem near its base. After several days, a high concentration of sucrose is found just above the ring, but very little sucrose is found in the roots.
What does this show about the role of phloem?
What does this show about the role of phloem?
- Phloem transports sucrose from leaves to other parts of the plant.
- Phloem transports only water and mineral ions from roots to leaves.
- Phloem stores sucrose permanently above the ring.
- Phloem allows sucrose to diffuse freely in all directions.
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