Question

Describe the modification of tap root for respiration with the help of neat and labbled diagrams

Answer 1

Answer:

The plants growing in saline, swamps, marshy places, and salt lakes are called halophytes. Such plants e.g. Rhizophora growing in swampy areas (mangroves), many roots come out of the ground (negatively geotropic) and grow vertically upwards. Such roots, called pneumatophores. They help to get oxygen for respiration. The roots appear like conical spikes coming out of the water. They occur in large numbers near the tree trunk. Exposed root tips possess Rhizophora minute pores (lenticels or pneumatothodes) through which roots respire. e.g. Rhizophora, Avicennia, Sonnerita, Heritiera (सुंद्री found in Sunderbans, Bengal).

Modification of Roots

Answer 2

Modifications of Tap Root for Better Respiration:

Such roots, called pneumatophores. They help to get oxygen for respiration. The roots appear like conical spikes coming out of the water. They occur in large numbers near the tree trunk.

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