TREE PHYSIOLOGY
RESPIRATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Do roots find oxygen between soil particles?
|
|
True
|
|
|
False
|
|
|
Either A or B
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -In plants, each part can independently take in oxygen from the air and give out carbon dioxide. Like all other living cells of the plants, the root cells take up air from the air spaces present between the soil particles.
Detailed explanation-2: -As mentioned above, roots respire too! One of the functions of the substrate is to serve as a site for air exchange between the root zone and atmosphere. In other words, roots breathe oxygen like we do. Different plants have different oxygen requirements for their root systems.
Detailed explanation-3: -In the absence or deficiency of O2, root growth is restricted or completely stopped.
There is 1 question to complete.