Bacteria that can grow and produce lethal toxins even inside the refrigerator are -

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RRB JE CBT I - (Held On: 1 June 2019 Shift 3)
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  1. Escherichia Coli
  2. Salmonellae 
  3. Clostridium Botulinum
  4. Streptococcus Faecalis

Answer (Detailed Solution Below)

Option 3 : Clostridium Botulinum
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The correct answer is Clostridium Botulinum

Key Points

  • Clostridium Botulinum is a bacterium that can grow and produce lethal toxins even in refrigerated conditions.
  • This bacterium is responsible for causing botulism, a rare but serious illness that can lead to paralysis and even death if untreated.
  • Unlike many other bacteria, Clostridium Botulinum can thrive in low-oxygen environments such as those found in sealed containers and refrigerated foods.
  • It produces spores that are resistant to heat and can survive in adverse conditions, making it particularly dangerous in improperly stored food items.

Additional Information

  • Escherichia Coli and Salmonellae are also harmful bacteria but they do not typically grow in refrigerated environments.
  • Streptococcus Faecalis is generally associated with infections in humans but is not known for producing lethal toxins in refrigerated conditions.
  • Proper food storage, including maintaining appropriate refrigeration temperatures and avoiding the consumption of improperly canned or preserved foods, can help prevent botulism.
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