Question

The basic feature of typical C${}_4$ plants showing ‘Kranz’ anatomy is:

• A. The presence of chloroplasts in mesophyll and epidermal cells
• B. The presence of chloroplasts in bundle sheath cells
• C. The presence of rudimentary chloroplasts in bundle sheath cells and typical chloroplasts with well-formed grana in mesophyll cells
• D. The presence of typical chloroplasts with well-formed grana in bundle sheath cells and rudimentary chloroplasts in the mesophyll cells

Answer 1

The correct option is B The presence of chloroplasts in bundle sheath cells

$C_4$ plants have kranz anatomy, which is a special ring like arrangement of mesophyll cells around the bundle sheath cell. In $C_4$ plants, vascular bundles are surrounded by a layer of bundle sheath cells that contain a large number of chloroplasts.

Chloroplasts present in the mesophyll cells is characteristics of C${}_3$ plants.