Question

A leafy shoot is placed in a beaker containing a solution of coloured dye. The given figure shows a part of a section of the shoot after two days. Which part is now most coloured by the dye?

• A. a
• B. b
• C. c
• D. d

Answer 1

The correct option is C c

• A- epidermis, B- phloem, C- xylem, D endodermis.
• When a leafy shoot of a plant is put in the coloured solution, the coloured solution will be absorbed and transported by the xylem in the vascular bundle to all other plant parts by transpiration pull, which acts like a suction pressure inside the xylem.
• The xylem vessel becomes coloured as it has conducted water from the dyed solution.

The correct option is C.