Which use only type I reaction centers for photosynthesis?
A)Heliobacteria.
B)Purple bacteria.
C)Cyanobacteria.
D)Algae.

Question

Quizplus · Accepted Answer

Heliobacteria are the only group of bacteria that use only type I reaction centers for photosynthesis. Type I reaction centers are characterized by having a single chlorophyll molecule that directly receives the electron excitation from the light. Neither purple bacteria, cyanobacteria, nor algae use only type I reaction centers.

Which Use Only Type I Reaction Centers for Photosynthesis