Q. PGA as the first carbon dioxide fixation product was discovered in photosynthesis of
A) Bryophyte
B) Gymnosperm
C) Angiosperm
D) Alga
Explanation
The use of radioactive ¹⁴C by Melvin Calvin in algal (Chlorella) photosynthesis studies led to the discovery that the first carbon dioxide fixation product was a 3-carbon organic acid. The first product identified was 3-phosphoglyceric acid (PGA).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.