HORTICULTURE SCIENCE
PLANT BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What structure moves water up a plant?
|
|
Xylem
|
|
|
Phloem
|
|
|
Either A or B
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -Root pressure pushes water up. Capillary action draws water up within the xylem. Cohesion-tension pulls water up the xylem.
Detailed explanation-2: -Xylem (blue) transports water and minerals from the roots upwards.
Detailed explanation-3: -The strong hydrogen bonds between water molecules causes them to ‘stick’ together, creating a column of water. This means that when tension pulls water up the xylem, the whole column of water moves upwards. Another force which facilitates the movement of water up the xylem is adhesion.
There is 1 question to complete.