STANDARDBotany-Photosynthesis
STANDARD Botany Calvin Cycle MCQ Question
Type: MCQ-conceptual-Medium
PGA as the first CO₂ fixation product was discovered in photosynthesis of
A
Algae
B
Bryophyte
C
Gymnosperm
D
Angiosperm
Correct Answer
Option A
Detailed Explanation
The use of radioactive ¹⁴C by Melvin Calvin in algal (chlorella) photosynthesis studies led to the discovery that the first CO₂ fixation product was a 3-carbon organic acid. The first product identified was 3-phosphoglyceric acid.
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