Photosynthesis In Higher Plants Question 99
Question: During dark reaction for fixation of carbon, the three carbon atoms of each molecule of 3-phosphoglyceric acid (PGA) are derived from [BHU 1994]
Options:
A) RuBP only
B) $ CO_2 $ only
C) $ RuBP+CO_2 $
D) $ RuBP+CO_2+PEP $
Show Answer
Answer:
Correct Answer: C
Solution:
In carboxylation Ribulose - 1, 5 - biphosphate (RuBP) (= Ribulose diphosphate) acts as $ CO_2 $ acceptor and 6 mols of RuBP react with 6 mols of $ CO_2 $ and mols of water giving rise to 12 mols of 3-phosphoglyceric acid.
BETA
