Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of $O_{2}$, root growth is restricted or completely stopped. How do the plants growing in marsh lands or swamps obtain their $\mathrm{O}_{2}$ required for root respiration?
Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of $O_{2}$, root growth is restricted or completely stopped. How do the plants growing in marsh lands or swamps obtain their $\mathrm{O}_{2}$ required for root respiration?
$\rightarrow$ Roots of plants in wet soil and at muddy place shows negative tropism. They develop in air above soil layer towards air and breathe through root. They are called breathing roots or pneumatophores e.g. Rhizofora.
Similar Questions
Which of the following pairs are correctly matched
(1)Assimilatory roots — Photosynthesis
(2)Fasciculated roots — Food storage
(3)Stilt root — Mechanical support
(4)Sucking root — Absorption of moisture from the air
Select the correct answer -
Which of the following pairs are correctly matched
(1)Assimilatory roots — Photosynthesis
(2)Fasciculated roots — Food storage
(3)Stilt root — Mechanical support
(4)Sucking root — Absorption of moisture from the air
Select the correct answer -
Give scientific reasons : The root of Rhizophora plant is called breathing root.
Give scientific reasons : The root of Rhizophora plant is called breathing root.
$A$ : Epiphyllous roots arise from the margins of leaf lamina.
$R$ : Epiphyllous roots help in vegetative reproduction.
$A$ : Epiphyllous roots arise from the margins of leaf lamina.
$R$ : Epiphyllous roots help in vegetative reproduction.
In Rhizophora, roots are modified to form
In Rhizophora, roots are modified to form
Region of root present just above the root cap is called the region of
Region of root present just above the root cap is called the region of