Q. Which was first photosynthetic organism?
A) Green algae
B) Red algae
C) Cyanobacteria
D) None of these
Explanation
Cyanobacteria (blue-green algae) were first photosynthetic organisms. They contain photosynthetic lamellae equivalent to thylakoids hence, these are autotrophic.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.