Question

Bundle sheath cells around the vascular bundles in $C_4$ plants are characterised by

• A. Few chloroplasts, thick cell walls and no intercellular spaces
• B. Large number of chloroplasts, thick cell walls and no intercellular spaces
• C. Few chloroplasts, thick cell walls and intercellular spaces
• D. Large number of chloroplasts, thin cell walls and no intercellular spaces

Answer 1

The correct option is B

Large number of chloroplasts, thick cell walls and no intercellular spaces

Bundle sheath cells

$C_4$ plants show a special type of leaf anatomy. In this type of anatomy, the bundle sheath cells are present in a wreath-like fashion surrounding the vascular bundle. The mesophyll cells further surround the bundle sheath cells.

The bundle sheath cells are large cells and are distinguishable from mesophyll cells in having a large number of chloroplasts without grana, large size, thick walls and no intercellular spaces.



Final Answer:

(c) Large number of chloroplasts, thick cell walls and no intercellular spaces