Q:
What Is the Function of a Raphide Crystal?
A:
Quick Answer
A raphide crystal occurs in plant cells, and its main function is to repel animals away from plants. The crystals are shaped like needles, and are formed from calcium oxalate.
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Stan Shebs
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Full Answer
Raphides and raphide crystals are found in more than 200 different species of plants. Raphides have a sharp end, and when consumed, release a toxin that is harmful to a plant's predator. Stinging and burning can occur in the mouth of a predator who has eaten a raphide crystal, and esophageal damage can occur. A lethal dose of raphide crystal to an animal like a field mouse is 15 mg/kg.
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