Raphides are needle-like crystals made up of

Calcium carbonate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Calcium sulphate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Calcium oxalate

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Calcium pectate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Calcium oxalate
Calcium oxalate is an ergastic substance and forms mineral crystals in some plant cells. It forms needle-shaped raphides. Example : Lemna, Eichhornia, etc. It protects the plant tissues from the animals and called as animal replant.

Suggest Corrections

Similar questions

Describe giving all practical details, how would you prepare :

(a) copper sulphate crystals from a mixture of charcoal and black copper oxide,

(b) zinc sulphate crystals from zinc dust (powdered zinc and zinc oxide),

(d) Calcium sulphate from calcium carbonate.

Join BYJU'S Learning Program