Question

Write in brief on lichens?

Answer 1

Lichen is an organism that is formed by the symbiotic association of a fungus and an alga or cyanobacterium and occurs as crusty patches or bushy growths on tree trunks, bare ground, etc.

Answer 2

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★ LICHEN:-

★. Term LICHEN was first given by Theophrastus

★. study of lichen is called Lichanology.

★ LICHEN are distinct group of organisms having two components .i.e algal component called phycobiont and fungal component called Mycobiont.

★ Algal components of lichens synthesis carbohydrates by photosynthesis and provides nutrition to fungal components and fungal components provides shelter and absorb minerals nutrients and water for its partner .Hence, lichen is an example of symbiosis.

★ Major part of lichen's thallus is composed of fungal component.

Happy to help !

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