Morphology Of Flowering Plants Root Stem And Leaf Question 516
Question: Trees may be damaged by animals which rub against them, wearing away a strip of bark right around the tree trunk and exposing the xylem. The tree will then
Options:
A) Die quickly, because the leaves are deprived of nutrients and water
B) Die quickly, because fungi enter the trunk through the wounds
C) Continue to grow, because bark may regrow to cover a wound
D) Die slowly, because the roots cannot replenish their energy reserves
Show Answer
Answer:
Correct Answer: A
Solution:
The tree will then die quickly, because xylem is a conducting tissue which conducts water and mineral nutrients upwards from the roots to the leaves.
When xylem and phloem are exposed, it is not able to do work properly, hence leaves are deprived of food and water.
BETA
