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Questions and Answers
Which mushroom toxin acts as a GABA-receptor agonist and is mildly hallucinogenic?
Which mushroom toxin acts as a GABA-receptor agonist and is mildly hallucinogenic?
- Muscimol and ibotenic acid (correct)
- Norleucine
- Amatoxins
- Gyromitrins
Which mushroom toxin inhibits RNA polymerase II and protein synthesis?
Which mushroom toxin inhibits RNA polymerase II and protein synthesis?
- Orellanine
- Gyromitrins
- Amatoxins (correct)
- Muscarine
Which mushroom toxin causes renal tubular necrosis?
Which mushroom toxin causes renal tubular necrosis?
- Gyromitrins
- Amatoxins
- Muscimol and ibotenic acid
- Orellanine (correct)
Which mushroom toxin stimulates M1 and M2 types of postganglionic cholinergic receptors?
Which mushroom toxin stimulates M1 and M2 types of postganglionic cholinergic receptors?
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Which complication of mushroom toxicity may involve loss of airway protective reflexes?
Which complication of mushroom toxicity may involve loss of airway protective reflexes?
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Study Notes
Plant Toxicity
- A poisonous plant is a plant that can be harmful or fatal to an organism when touched or ingested in sufficient quantity.
Examples of Poisonous Plants
- Mushroom
- Foxglove
- Castor bean
- Free tobacco
Mushroom Toxicity
- Mushroom toxicity occurs after ingesting mushrooms that contain toxins, which can be mistaken for non-toxic mushrooms.
- Only about 100 out of thousands of mushroom species can cause symptoms when eaten by humans.
- Only 15-20 mushroom species are potentially lethal when ingested.
Challenges in Identifying Poisonous Mushrooms
- There is no simple rule to distinguish edible mushrooms from poisonous ones.
- Over 95% of mushroom toxicity cases occur due to misidentification of poisonous mushrooms with edible ones.
Classification of Mushroom Poisoning
Early Symptom Category
- Symptoms develop within the first 6 hours of ingestion.
- Includes gastrointestinal, allergic, and neurologic syndromes.
Late Symptom Category and Delayed Symptom Categories
- Not specified in the text.
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Description
Explore the harmful effects of poisonous plants and the dangers associated with mushroom toxicity. Learn about the symptoms and reactions caused by ingesting or touching toxic plants.
