Question

Which one is feature of Kranz anatomy

• A. Well developed chloroplasts in bundle sheath cells
• B. Rudimentary chloroplasts in bundle sheath cells
• C. Chloroplasts in epidermal cells
• D. Chloroplasts in vascular tissue

Answer 1

The correct option is A Well developed chloroplasts in bundle sheath cells

Kranz anatomy is found in leaves of $C_4$ plants. The $C_4$ pathway requires the presence of two types of cells i.e. mesophyll cells and bundle sheath cells. The particularly large cells around the vascular bundles of $C_4$ plants are called bundle sheath cells, these cells may form several layers around the vascular bundles, they are characterized by having a large number of well-developed chloroplasts, grana are absent, thick walls impervious to gaseous exchange and no extracellular spaces. This special anatomy of leaves of the $C_4$ plants is called Kranz anatomy. 'Kranz' means wreath and is a reflection of the arrangement of cells.