NEET · Biology · STD 11 - 11. photosynthesis in higher plants
The enzyme required for carboxylation in the Calvin cycle is :
- A Hexokinase
- B PEP carboxylase
- C RuBP carboxylase – oxygenase
- D Carboxypeptidase
Answer & Solution
Correct Answer
(C) RuBP carboxylase – oxygenase
Step-by-step Solution
Detailed explanation
(C) RuBP carboxylase – oxygenase
The Calvin cycle is the primary pathway for carbon fixation in plants.
The first step of the Calvin cycle is carboxylation, where carbon dioxide is added to a five-carbon acceptor molecule, Ribulose-1,5-bisphosphate (RuBP).
This reaction is catalyzed by the enzyme Ribulose bisphosphate carboxylase-oxygenase, commonly known as RuBisCO.
Hexokinase is an enzyme involved in glycolysis.
PEP carboxylase is the primary carboxylating enzyme in the C4 pathway.
Carboxypeptidase is a proteolytic enzyme involved in digestion.
The Calvin cycle is the primary pathway for carbon fixation in plants.
The first step of the Calvin cycle is carboxylation, where carbon dioxide is added to a five-carbon acceptor molecule, Ribulose-1,5-bisphosphate (RuBP).
This reaction is catalyzed by the enzyme Ribulose bisphosphate carboxylase-oxygenase, commonly known as RuBisCO.
Hexokinase is an enzyme involved in glycolysis.
PEP carboxylase is the primary carboxylating enzyme in the C4 pathway.
Carboxypeptidase is a proteolytic enzyme involved in digestion.
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