Question

Raphides are found in

• A. Citrus
• B. Colocasia
• C. Both A and B
• D. None of the above

Answer 1

The correct option is B Colocasia

Raphides are needle-shaped crystals of calcium oxalate or calcium carbonate. Raphides occur in parenchyma cells in the leaves and are generally confined to the mesophyl.

Both ends of raphids are needle-like, but tend to be blunt at one end and sharp at the other. Raphides are found in many species in the families Araceae and Commelinaceae.

Colocasia belongs to the Araceae family. So, it has raphides.