In xylem, the ascent of sap takes place in
A. Tracheids with associated xylem parenchyma
B. Walls of tracheary elements
C. Xylem perenchyme
D. Lumen of tracheary elements
A. Tracheids with associated xylem parenchyma
B. Walls of tracheary elements
C. Xylem perenchyme
D. Lumen of tracheary elements
Correct Answer – D