Biology, asked by jeiow, 10 months ago

Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of O2, root growth is restricted or completely stopped. How do the plants growing in marshlands or swamps obtain their O2 required for root respiration?

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Answered by Anonymous

Answer:

In some plants such as Rhizophora and Sonneratia (mangrove plant) growing in swampy areas near river mouths (saline marshy soil or halophytes), many roots come out of the ground and grow vertically upwards (negatively geotropic: against gravitational force). Such roots, called pneumatophores or breathing roots or respiratory roots, help to get oxygen for respiration.

Hope this will help you ✌️

Answered by Nєєнα

Explanation:

♥ Take an example of plant Rhizophora which grows in marshy or swamp areas

♥ It is geotropically negative

♥ They grow vertically upwards in the air above the soil level and respire

♥ Hence they are called respiratory roots or neumatophores which helps to take oxygen

♥ Though the root growth is completely stopped respiratory roots works in root respiration

hope it helps u......❣️

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Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of O2, root growth is restricted or completely stopped. How do the plants growing in marshlands or swamps obtain their O2 required for root respiration?​

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Answer:

Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of O2, root growth is restricted or completely stopped. How do the plants growing in marshlands or swamps obtain their O2 required for root respiration?