NEETBotanyPhotosynthesis in Higher Plants
Match List I with List II regarding the anatomy and enzymes of C₄ plants: List I List II A. Mesophyll cells of C₄ plants I. Rich in RuBisCO but lack PEPcase B. Bundle sheath cells of C₄ plants II. Thick walls impervious to gaseous exchange C. Kranz anatomy III. Phosphoenolpyruvate (PEP) D. Primary CO₂ acceptor in C₄ plants IV. Contain PEPcase but lack RuBisCO Choose the correct answer from the options given below:
Options
- AA-I, B-IV, C-II, D-III
- BA-IV, B-I, C-III, D-II
- CA-IV, B-I, C-II, D-III
- DA-I, B-IV, C-III, D-II
Correct answer
C. A-IV, B-I, C-II, D-III
Step-by-step solution
In C₄ plants, the mesophyll cells contain the enzyme PEPcase but lack RuBisCO (A matches IV). The bundle sheath cells are rich in the enzyme RuBisCO but lack PEPcase (B matches I). These plants exhibit Kranz anatomy, which is characterized by large bundle sheath cells that have thick walls impervious to gaseous exchange and lack intercellular spaces (C matches II). The primary CO₂ acceptor in the mesophyll cells of C₄ plants is a 3-carbon molecule, phosphoenolpyruvate or PEP (D matches III). Therefore, the correct