Question

Although a girdled (upto bast) tree may survive for some time, it will eventually die because:
(i) Water will not move upward
(ii) Water will not move downward
(iii) Sugars and other organic solutes will not move downward
(iv) Sugars and other organic solutes will not move upward

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (iii) and (iv)
• D. (i) and (iv)

Answer 1

The correct option is C (iii) and (iv)

In a girdled tree bark is removed. Bark is tissues outside the vascular cambium and includes phloem. Due to removal of phloem, food is not transported to roots, or from roots upwards. This is why the plant will eventually die.
Water transportation occurs through xylem.