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📌 The Question

Consider the following statements:

1. Some mushrooms have medicinal properties.
2. Some mushrooms have psychoactive properties.
3. Some mushrooms have insecticidal properties.
4. Some mushrooms have bioluminescent properties.

How many of the above statements are correct?

(a) Only one
(b) Only two
(c) Only three
(d) All four

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✅ Correct Answer: (d) All four

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🧑‍🏫 Classroom Explanation

✔️ Statement 1 – Correct (Medicinal mushrooms)
Certain mushrooms such as Pleurotus (oyster mushrooms), Ganoderma (Reishi) and Lentinula edodes (Shiitake) possess immunomodulatory, anti-cancer, anti-diabetic and antioxidant properties. They are widely studied in nutraceutical and pharmaceutical research.

✔️ Statement 2 – Correct (Psychoactive mushrooms)
Psilocybin mushrooms, commonly called magic mushrooms, contain psychoactive compounds like psilocybin and psilocin, which cause hallucinations and altered perception. These are classified as psychedelic substances.

✔️ Statement 3 – Correct (Insecticidal properties)
Certain mushroom species produce toxic secondary metabolites that act as natural insecticides, helping them defend against insect predation. Species of Lactarius and other fungi show such traits.

✔️ Statement 4 – Correct (Bioluminescent mushrooms)
Some mushrooms emit light due to luciferin–luciferase reactions, a phenomenon called fungal bioluminescence. Examples include Mycena, Armillaria, and Omphalotus. This glow may help attract insects for spore dispersal.

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⚡ Curiosity Raiser

Did you know?
🌌 Forests with glowing mushrooms are called “ghost forests” — nature’s own silent light show.

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📚 Enrich Notes (UPSC Edge)

• Mushrooms belong to Kingdom Fungi, not plants
• Key roles:
  • Decomposers
  • Medicinal resource
  • Ecological indicators
• Bioluminescence ≠ photosynthesis
• Repeatedly asked in Environment + S&T overlap

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🕊️ IAS Monk Whisper

“Even decay, in nature, is creative — mushrooms turn death into light, medicine, and balance.”