Question

In $C_4$ pathway, RuBP accepts $C{O}_2$ inside

• A. Xylem parenchyma
• B. Phloem parenchyma
• C. Mesophyll cells
• D. Bundle sheath cells

Answer 1

The correct option is C Mesophyll cells

A) Xylem parenchyma is not involved in photosynthesis.

B) Phloem parenchyma is not involved in photosynthesis.

C) Mesophyll cells are rich in PEP which accepts ${CO}_2$ inside the mesophyll cells.

D) Bundle sheath cells are involved in the decarboxylation of ${CO}_2$. They do not have PEP. ${CO}_2$ is accepted in the mesophyll cells.

So the correct answer is 'Mesophyll cells'.