what is Ricin in biology
Answers
Ricin is a potent toxin derived from the castor bean plant (Ricinus communis). ... The simplicity of extracting ricin from castor beans, together with its stability and toxicity, make ricin a credible bioterrorist threat agent.
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Ricin is a natural, highly toxic compound that is a byproduct of processing castor beans.
If inhaled, injected or ingested, less than a pinpoint of ricin can kill a person within 36 to 48 hours due to the failure of the respiratory and circulatory systems.
If ingested, ricin causes nausea, vomiting and internal bleeding of the stomach and intestines, followed by failure of the liver, spleen and kidneys, and finally death by collapse of the circulatory system.
One molecule of ricin will kill a cell it enters. Ricin ingestion is not always fatal; children are at more risk than adults. Ricin poisoning is not contagious and cannot spread from person to person through casual contact, the CDC said.
If a castor bean seed is swallowed whole without damage to the seed coat, it will probably pass harmlessly through the system. But if the coat is chewed or broken and then swallowed, the poison will enter the body.
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