Lichens consist of an intimate mutualistic symbiosis between a fungus, an alga, and/or cyanobacteria. What is the primary role of the cyanobacteria in this association?
A) protection of the symbionts
B) production of photosynthate
C) decomposition of toxic compounds
D) recycling of waste products
E) degradation of lignin

Question

Quizplus · Accepted Answer

The primary role of the cyanobacteria in the lichen symbiosis is the production of photosynthate through photosynthesis. The fungus provides structure and protection, while the alga and cyanobacteria produce sugar through photosynthesis, which is shared with the fungus.

Lichens Consist of an Intimate Mutualistic Symbiosis Between a Fungus