Question

In the leaves of C₄ plants, malic acid formation
during CO₂ fixation occurs in the cells of
(a) epidermis (b) mesophyll
(c) bundle Sheath (d) phloem

Answer 1

Answer:

bundle sheath is the right answer..

Answer 2

The correct answer is (B).

Explanation:

• Malic acid formation takes place in Mesophyll cells of C4 Plants.
• Mesophyll Cells are present in the leaves of C4 Plants, where chlorophyll pigment is found.

• Carbon dioxide fixation takes place in the mesophyll cells with the help of enzyme PEP carboxylase which produces Malic acid.

• Malic acid is then pumped into bundle sheath cells where agranal chloroplast is found.

• Malic acid which is a four carbon organic acids, is decarboxylated to release carbon dioxide.