Connor placed a piece of celery plant in a cup of colored water. The diagram shows the results of the experiment.

Question

Which structure in the celery plant was most likely responsible for making the leaves turn red?

phloem
pollen
embryo
xylem

Answer 1

The structure in the celery plant that was most likely responsible for making the leaves turn red is the xylem. The xylem is responsible for transporting water and dissolved nutrients (such as colored water in this experiment) from the roots up through the plant to the leaves. When Connor placed the celery plant in colored water, the xylem carried the colored water to the leaves, resulting in the leaves turning red.