Question

A celery stalk is split lengthways and each side of the lower half is placed in a different coloured dye solution. Select the statements that are correct for the below experiment.

• A. The red and blue dyes will mix and become a single colour in the leaves.
• B. Both colours will be seen in the leaves making the leaves multicoloured.
• C. There will be no transport of dye as stem is cut.
• D. Dyes will be transported to the top via the stem.

Answer 1

Answer: (B), (D)

Dyes will be transported to the top via the stem.

The blue and red dye will be transported to the top of the celery stalk via the hollow tubes present in the stem. The cells in these tubes are arranged end to end vertically and do not meet each other horizontally. Hence, the colours will not mix in the stem.