Question

Question 57
What special anatomical features are displayed by leaves of $C_4$ plants?
How do they provide advantage over the structure of $C_3$ plants?

Answer 1

Kranz Anatomy, is the feature exhibited by $C_4$ plant. These possess two types of chloroplast in their leaves. Agranal chloroplast found in bundle sheath cells whereas granal chloroplast is found in the mesophyll cells.
Bundle sheath cell perform $C_3$ cycle (dark reaction) where as mesophyll cell perform $C_4$ cycle.
$C_4$ plants are more efficient even in high $O_2$ concentration and temperature as compared to $C_3$ plants. Many important crop plants (monocots) show $C_4$ cycle like maize, sorghum, sugarcane and millet.