NEET2003BotanyPhotosynthesis in Higher PlantsActual
In sugarcane plant ¹⁴ CO ₂ is fixed in malic acid, in which the enzyme that fixes CO ₂ is:
Options
- Aribulose biphosphate carboxylase
- Bphosphoenol pyruvic acid carboxylase
- Cribulose phosphate kinase
- Dfructose phosphatase
Correct answer
B. phosphoenol pyruvic acid carboxylase
Step-by-step solution
In C ₄ plant, in chloroplasts of mesophyll cells PEP carboxylase is the key enzyme used in carbon fixation. Due to this enzyme PEP + CO ₂ converted into oxaloacetic acid. Caution Sugarcane is a C₂ plant.