Question

Blue green algae, bacteria, how are they able to perform photosynthesis

Answer 1

In general, photosynthesis in cyanobacteria uses water as an electron donor and produces oxygen as a byproduct, though some may also use hydrogen sulfide a process which occurs among other photosynthetic bacteria such as the purple sulfur bacteria. Carbon dioxide is reduced to form carbohydrates via the Calvin cycle.

Answer 2

Cyanobacteria helps to blue green algae.