Test your knowledge on the deadly mushroom toxin, Amanita Phalloides, and its in...
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Questions and Answers

What is the name of the mushroom that contains a toxin that inhibits mRNA synthesis?

  • Amanita Muscaria
  • Psilocybe Cubensis
  • Amanita Phalloides (correct)
  • Agaricus Bisporus

What is the name of the toxin found in Amanita Phalloides that inhibits RNA Pol II?

  • ibotenic acid
  • a-amanitin (correct)
  • muscarine
  • psilocybin

What does a-amanitin do once it binds to RNA Pol II?

  • Activates it
  • Transcribes it
  • Inactivates it (correct)
  • Destroys it

Is the complex formed between a-amanitin and RNA Pol II reversible?

<p>No, it is irreversible (A)</p> Signup and view all the answers

What are the symptoms caused by ingestion of Amanita Phalloides?

<p>GI disturbances, electrolyte imbalance, fever, liver and kidney dysfunction (C)</p> Signup and view all the answers

What is the mechanism of action of a-amanitin?

<p>Inhibits mRNA synthesis by forming a complex with RNA Pol II (C)</p> Signup and view all the answers

Can ingestion of Amanita Phalloides lead to death?

<p>Yes, in 50-90% of cases within a few days (A)</p> Signup and view all the answers

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