Question

Lichens are association of:

• A. alga and bacterium
• B. bacteria and fungus
• C. fungus and alga
• D. fungus and virus

Answer 1

The correct option is C fungus and alga

Lichens

Lichens are an example of mutualism. Lichens are formed by the symbiotic association of algae or blue green algae with fungi.

• Algae contains green pigment chlorophyll and can prepare food by photosynthesis.
• Fungus does not contain chlorophyll and therefore, cannot prepare food by photosynthesis.
• Algae provides food to fungus. In turn, fungus helps in the absorption of nutrients and supplies it to the algae.

Final answer:
c.) fungus and alga