Which of the following cells in $C_{4}$ plants are rich in RuBisCO?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Epidermal cells

Endodermal cells

Mesophyll cells

Bundle sheath cells

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

C₄ plants have kranz anatomy in which the total process of photosynthesis involves two types of cells. The mesophyll cells lack the RuBisCO enzyme. In the place of RuBisCO, it has a 3-carbon molecule phosphoenol pyruvate (PEP) as the primary CO₂ acceptor.

The enzyme responsible for this fixation is PEP carboxylase or PEPcase. It is important to register that the CO₂ released in the bundle sheath cells enters the C₃or the Calvin pathway, a pathway common to all plants. The bundle sheath cells are rich in the enzyme Ribulose bisphosphate carboxylase-oxygenase (RuBisCO), but lack the PEP case enzyme.

Watch 3-min video & get full concept clarity