DENDROLOGY

Detailed explanation-1: -The xylem and phloem are two conducting tissues present in plants. Xylem conducts minerals and water only in the upward direction i.e. from the roots towards the stem. The phloem transports food material from leaves to other parts of the plant body. It can conduct food in both directions.

Detailed explanation-2: -Translocation is the movement of sucrose around a plant from a source to a sink. It’s bidirectional, which means it can transport substances both up and down the plant. Translocation occurs in a specialized tissue called the phloem, which consists of sieve tube elements and companion cells.