The leaf tissue responsible for water transport from roots to shoots?

The leaf tissue responsible for water transport from roots to shoots?

• A. Xylem
• B. Phloem
• C. Cambium
• D. Cortex

Answer: (A)

Water movement from roots to leaves is carried by the xylem, the plant’s water-conducting tissue. Xylem consists of hollow, tube-like vessels and tracheids that form continuous pathways from roots up through stems to the leaves. Water is pulled upward mainly by transpiration from the leaves, with cohesion between water molecules and adhesion to the xylem walls helping to maintain a continuous column. The phloem, by contrast, transports sugars and other organic nutrients, not water. Cambium is a growth layer that produces new xylem and phloem during secondary growth, and the cortex is ground tissue mainly for storage and support rather than transport.

Water movement from roots to leaves is carried by the xylem, the plant’s water-conducting tissue. Xylem consists of hollow, tube-like vessels and tracheids that form continuous pathways from roots up through stems to the leaves. Water is pulled upward mainly by transpiration from the leaves, with cohesion between water molecules and adhesion to the xylem walls helping to maintain a continuous column. The phloem, by contrast, transports sugars and other organic nutrients, not water. Cambium is a growth layer that produces new xylem and phloem during secondary growth, and the cortex is ground tissue mainly for storage and support rather than transport.