Question

In $C_4$ plants, the bundle sheath cells

• A. Have thin walls to facilitate the gaseous exchange
• B. Have large intercellular spaces
• C. Are rich in PEP carboxylase
• D. Have a high density of chloroplast

Answer 1

The correct option is D Have a high density of chloroplast

Bundle sheath cells are specialised cells found in $C_4$ plants, that lie below a layer of mesophyll cells. The bundle sheath cells are the sites within $C_4$ plants, where the Calvin cycle enzymes are located. Bundle sheath cells have dense chloroplasts while mesophyll chloroplasts are scattered.

So, the correct answer is option D.