Question

In some plants waste material present in the form of crystals of calcium oxalate called as......​

Answer 1

Explanation:

Angiosperm calcium oxalate crystals occur in five major forms: prisms, sty- loids, raphides, druses, and crystal sand (Met- calfe and Chalk, 1950; Esau, 1977; Cutter, 1978; Fahn, 1982).

Answer 2

Answer:

• Raphides are needle-shaped crystals of calcium oxalate as the monohydrate or calcium carbonate as aragonite, found in more than 200 families of plants. Both ends are needle-like, but raphides tend to be blunt at one end and sharp at the other