Photosynthesis In Higher Plants Question 149
In dark reaction, first reaction is the fixation of carbon dioxide
Options:
A) Carboxylation
B) Decarboxylation
C) Dehydrogenation
D) Deamidation
Show Answer
Answer:
Correct Answer: A
Solution:
Addition of carbon dioxide in to a compound is called carboxylation.
Carboxylation is a first reaction of the Calvin cycle.
6 Ribulose-1,5-bisphosphate + 6 CO2 + 6 H2O $ \underset{RuBP,carboxylase}{\mathop{\xrightarrow{RuBP,carboxylase}}}, $ $ \underset{(12,mols)}{\mathop{3-phosphoglyceric}},acid $ 1,3-bisphosphoglycerate +12 NADPH $ \xrightarrow{Triose,phosphate,dehydrogenase}3-phosphoglyceraldehyde+12NAD{P^{+}}+12H_3PO_4.
$
BETA
