Question

Choose the correct option(s) with respect to the transportation in plants.

• A. Xylem transports water and minerals.
• B. Flow in xylem is unidirectional.
• C. Flow in phloem is unidirectional.
• D. Flow in phloem is bidirectional.

Answer 1

Answer: (A), (B), (D)

Flow in phloem is bidirectional.

The transport system of plants consist of xylem and phloem.
$\bullet$ In xylem, the flow is unidirectional, i.e., it transports water and minerals from the roots to other parts of the plant only in one direction (upwards).
$\bullet$ Phloem transports food from the leaves to all parts of the plant. So the flow is bidirectional(upwards and downwards).