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1. A dicot plant is placed into a bowl of water colored with red dye.
After 1 hour, a cross-section of one of the roots is cut.
After 4 hours, a cross-section is cut from the stem.Â
Which labelled regions would be stained red in each case?Â
2. A student collected some of the solution from the phloem in the stem of a plant.Â
Which of the following would be present in the liquid?
3. The diagram below shows part of the trunk of a small dicotyledonous tree with a ring of bark removed. Removing the ring of bark removes one type of transport tissue but leaves the other type intact.
What effect does removing the bark have on the two branches?
4. The xylem has specific adaptations to allow it to transport water and mineral ions from the roots of a plant to the leaves as a result of transpiration.
Which processes produce the adaptations in xylem vessels to allow the continuous flow of water?
5. Which row of the table below shows substances transported through the phloem and xylem, and the direction of transport, correctly?