Question

Dry scales of onion possess in their cells

• A. Raphides
• B. Prismatic crystals
• C. Sphaeraphides
• D. Crystal sand

Answer 1

The correct option is B Prismatic crystals

A. Calcium oxalate crystals occur in the form of needle-shaped in few plant cells and are called raphides.

• Eg- Water hyacinth.

B. Calcium oxalate in the form of rod-like or cubicle shaped in few plant cells and are called prismatic crystals.

• Eg- dry scales of onions.

C. Calcium oxalate crystals occur in the form of star-shape in plant cells and are called sphaeraphides.

• Eg- phylloclades of Colocasia.

D. Calcium oxalate is deposited in the leaves within the vacuoles during early developmental stages in plants is called crystal sand. Eg- Beet root

So, the correct answer is 'Prismatic crystals'.