Question

In $C_4$ plants the bundle sheath cells have?

• A. Thin walls to facilitate gaseous exchange.
• B. Large intercellular spaces.
• C. Are rich in PEP carboxylase.
• D. A high density of larger chloroplasts, which always lack grana.

Answer 1

The correct option is D A high density of larger chloroplasts, which always lack grana.

• Bundle sheath cells have thick walls.
• They have little or no intercellular spaces and are impervious to gases.
• PEP carboxylase is present in the mesophyll cells.
• The chloroplasts are present in a higher density and close to the vascular tissues.

So, the correct answer is option D.