Question

Enzymes PEP carboxylase and RuBP carboxylase are located in chloroplasts of

• A. $C_3$ plants
• B. CAM plants
• C. $C_4$ plants
• D. Both B and C

Answer 1

Answer: (D)

Both B and C

PEP carboxylase is found in mesophyll cells of $C_4$ plants that help in the formation of oxalo acetic acid. RuBP carboxylase is found in the chloroplast of both $C_3$ and $C_4$ plants and it helps in the fixation of carbon dioxide in the Calvin cycle.

So the correct option is 'Both B and C'.