PATHOLOGY MCQ
CELL DAMAGE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
performing photosynthesis
|
|
|
absorbing water from the soil
|
|
|
transporting sugar to the roots
|
|
|
transporting water to the leaves
|
Detailed explanation-1: -The tree must first start performing photosynthesis in order to make up for the lost nutrients.
Detailed explanation-2: -If the xylem tissue is damaged then the transportation of water and mineral will stop and ultimately the tree will die.
Detailed explanation-3: -If a plant’s Xylem is removed, the plant will be unable to carry water to its leaves, interfering with activities such as photosynthesis, transpiration, and growth.
Detailed explanation-4: -Transpiration is ultimately the main driver of water movement in xylem. The cohesion-tension model works like this: Transpiration (evaporation) occurs because stomata are open to allow gas exchange for photosynthesis.
Detailed explanation-5: -The cohesion – tension theory of sap ascent explains how how water is pulled up from the roots to the top of the plant. Evaporation from mesophyll cells in the leaves produces a negative water potential gradient that causes water and minerals to move upwards from the roots through the xylem.