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Select the incorrectly matched pair with regard to the C4 cycle.
- a)Primary CO2 fixation product – PGA
- b)C4 plant – Maize
- c)Primary CO2 acceptor – PEP
- d)Site of initial carboxylation – Mesophyll cells
- e)Location of enzyme RuBisCO – Bundle sheath cells
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Select the incorrectly matched pair with regard to the C4cycle....
The primary CO
2
fixation product in C
4
plants is oxaloacetic acid, which is converted to malic acid or aspartic acid that is transported to the bundle sheath cells where the acid is decarboxylated and the CO
2
thus released enters the Calvin cycle.
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Select the incorrectly matched pair with regard to the C4cycle....
Incorrectly Matched Pair in C4 Cycle:
Primary CO2 fixation product - PGA
PGA (phosphoglycolate) is not the primary CO2 fixation product in the C4 cycle. The primary CO2 fixation product in the C4 cycle is oxaloacetic acid (OAA).
C4 plant - Maize
Maize is a well-known example of a C4 plant. C4 plants have a unique photosynthetic pathway that allows them to efficiently fix carbon dioxide, especially in hot and dry conditions.
Primary CO2 acceptor - PEP
PEP (phosphoenolpyruvate) is indeed the primary CO2 acceptor in the C4 cycle. It combines with carbon dioxide to form oxaloacetic acid (OAA) in the mesophyll cells.
Site of initial carboxylation - Mesophyll cells
The initial carboxylation step in the C4 cycle occurs in the mesophyll cells where phosphoenolpyruvate carboxylase (PEPCase) catalyzes the reaction between PEP and CO2 to form OAA.
Location of enzyme RuBisCO - Bundle sheath cells
The enzyme RuBisCO (ribulose-1,5-bisphosphate carboxylase/oxygenase) is located in the bundle sheath cells of C4 plants. It plays a role in the Calvin cycle, where the OAA produced in the mesophyll cells is decarboxylated and enters the Calvin cycle for further carbon fixation.
Therefore, the incorrectly matched pair is "Primary CO2 fixation product - PGA" as PGA is not the primary CO2 fixation product in the C4 cycle.
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Select the incorrectly matched pair with regard to the C4cycle.a)Primary CO2fixation product – PGAb)C4plant – Maizec)Primary CO2acceptor – PEPd)Site of initial carboxylation – Mesophyll cellse)Location of enzyme RuBisCO – Bundle sheath cellsCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Select the incorrectly matched pair with regard to the C4cycle.a)Primary CO2fixation product – PGAb)C4plant – Maizec)Primary CO2acceptor – PEPd)Site of initial carboxylation – Mesophyll cellse)Location of enzyme RuBisCO – Bundle sheath cellsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the incorrectly matched pair with regard to the C4cycle.a)Primary CO2fixation product – PGAb)C4plant – Maizec)Primary CO2acceptor – PEPd)Site of initial carboxylation – Mesophyll cellse)Location of enzyme RuBisCO – Bundle sheath cellsCorrect answer is option 'A'. Can you explain this answer?.
Select the incorrectly matched pair with regard to the C4cycle.a)Primary CO2fixation product – PGAb)C4plant – Maizec)Primary CO2acceptor – PEPd)Site of initial carboxylation – Mesophyll cellse)Location of enzyme RuBisCO – Bundle sheath cellsCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Select the incorrectly matched pair with regard to the C4cycle.a)Primary CO2fixation product – PGAb)C4plant – Maizec)Primary CO2acceptor – PEPd)Site of initial carboxylation – Mesophyll cellse)Location of enzyme RuBisCO – Bundle sheath cellsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the incorrectly matched pair with regard to the C4cycle.a)Primary CO2fixation product – PGAb)C4plant – Maizec)Primary CO2acceptor – PEPd)Site of initial carboxylation – Mesophyll cellse)Location of enzyme RuBisCO – Bundle sheath cellsCorrect answer is option 'A'. Can you explain this answer?.
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