NEETBotanyPhotosynthesis in Higher Plants
Match List-I with List-II. List-I List-II (A) Primary CO2 acceptor in C3 pathway (I) Phosphoenol pyruvate (B) Primary CO2 acceptor in C4 pathway (II) Ribulose bisphosphate (C) First stable product in C3 pathway (III) Oxaloacetic acid (D) First stable product in C4 pathway (IV) Phosphoglyceric acid Choose the correct answer from the options given below:
Options
- A(A)-(I), (B)-(II), (C)-(III), (D)-(IV)
- B(A)-(II), (B)-(I), (C)-(III), (D)-(IV)
- C(A)-(I), (B)-(II), (C)-(IV), (D)-(III)
- D(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
Correct answer
D. (A)-(II), (B)-(I), (C)-(IV), (D)-(III)
Step-by-step solution
In the C3 pathway, the primary CO2 acceptor is a 5-carbon ketose sugar, Ribulose bisphosphate (RuBP), and the first stable product is a 3-carbon organic acid, 3-Phosphoglyceric acid (PGA). In the C4 pathway, the primary CO2 acceptor is a 3-carbon molecule, Phosphoenol pyruvate (PEP), and the first stable product is a 4-carbon acid, Oxaloacetic acid (OAA). Therefore, the correct match is (A)-(II), (B)-(I), (C)-(IV), (D)-(III). Answer: (A)-(II), (B)-(I), (C)-(IV), (D)-(III)