Question

Describe the role of lignin in plants.

Answer 1

Lignin is important for terrestrial plants by providing structural support for the upward growth of plants and enabling the long-distance water transportation, which are essential for the evolutionary adaptation of plants from the aquatic to terrestrial environment

Answer 2

Lignin is found in plant cell wall, particularly in middle lamella of cell wall (eg. sclerenchyma tissue).

Role of lignin in plants:-

• It helps in conduction of water.
• It provides mechanical support to the plant.
• It also nurtures resistance to many kinds of stress.