What are the components of the transport system in highly organised plants?
The transport system in highly organised plants consists of two independently organised conducting tubes. These two main components are xylem and phloem.
Xylem moves water and minerals obtained from the soil. In xylem tissue, vessels and tracheids of the roots, stems, and leaves are interconnected to form a continuous system of water-conducting channels reaching all parts of the plant.
Phloem transports the products of photosynthesis from the leaves where they are synthesised to other parts of the plant. This transport of soluble products of photosynthesis is called translocation.
Explanation
The textbook context explicitly identifies the two pathways of the plant transport system as xylem and phloem. It details that xylem is responsible for moving water and minerals from the soil, while phloem handles the translocation of food (photosynthesis products) from the leaves to other parts.