Question

In C4plants, Calvins cycle:

• A. Does not operate because PEP carboxylase fixes most of $C{{O}_{2}}$ and leaves only a little of it for Calvin cycle
• B. operates in the stroma of bundles heath chloroplasts
• C. operates in the grana of bundle sheath chloroplasts
• D. operates in the mesophyll chloroplast only

Answer 1

Answer: (B)

operates in the stroma of bundles heath chloroplasts

Answer 2

In ${{C}_{4}}$ plants, the first product after $C{{O}_{2}}$ fixaton is four carbon oxaloacetic acid (OAA) formed in mesophyll cells. The Calvin cycle takes place in the stroma of bundle sheath cells chloroplast.