Ncert Exercises & Solutions

What special anatomical features are displayed by leaves of C₄ plants? How do they provide advantage over the structure of C₃ plants?

Kranz Anatomy, is the feature exhibited by C₄ 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 C₃ cycle (dark reaction) where as mesophyll cell perform C₄cycle.
C₄ plants are more efficient even in high O₂ concentration and temperature as compared to C₃ plants. Many important crop plants (monocots) show C₄cycle like maize, sorghum, sugarcane and millet.

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