Question

A star-shaped mass of crystals of calcium oxalate found in the cells of Chenopodium and Colocasia is called

• A. Crystal sand
• B. Sphaeraphide
• C. Druse
• D. Both B and C

Answer 1

The correct option is D Both B and C

• Minerals crystals are found in plant cell walls in the form of calcium oxalate, carbonate or silica.
  
• Druse can be defined as a group of crystals of calcium oxalate, silicates or carbonates present in plants cells as a defence against herbivorous animals due to the toxicity.
• Calcium oxalate crystals occur in the form of star-shape in plant cells and are called sphaeraphides.
  
• Eg- phylloclades of Colocasia, Chenopodium etc.
  
• So, the correct answer is 'Both B and C'.