The given figure shows an experiment in which a cut shoot of balsam plant is dipped in a blue coloured dye. After some time, sections from different parts of the stem starting from the tip region show the blue colour in the region P (marked in the section) which demonstrate the Q. P and stand for _____ .

Options

A. P = Xylem, Q = Upward movement of water
B. P = Phloem, Q = Downward movement of food
C. P = Xylem, Q = Upward movement of food
D. P = Vascular bundle: Q = Conduction of water and food

Answer

B

Explanation

Plants have special conducting structures called vascular bundles which consist of xylem and phloem. Xylem conducts water and dissolved nutrients upwards from roots to leaves, stem etc. Phloem conducts food prepared in leaves downwards to other organs as well as, upwards from food stored in the storage organs like stem tubers to other organs in need.