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………….Proved that the anaerobic bacterium...

………….Proved that the anaerobic bacterium Clostridium botulinum is responsible for food poisoning
Louis Pasteur
Ida Bengtson
Alexander Fleming
Emile Van Ermengem

A

Louis Pasteu

B

Ida Bengston

C

Alexander Fleming

D

Emile Van Ermengem

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Answer the following Read the paragraph and answer the questions given below it. Food poisoning can occur due to contamination of food by various bacteria and fungi.Clostridia are bacteria responsible for spoilage of cooked food. There are around 100 species of this bacteria viz. Clostridium tetani, Clostridium botulinum, etc. that are present either free living in soil or the alimentary canal of humans and other animals. The bacteria are rod- shaped and produce pottle-shaped endospores in adverse environmental conditions. These microbes cannot withstand normal oxygen levels in air and grow under anaerobic conditions. Do you know about any rod-shaped, anaerobic micro-organism that is useful to humans?

Answer the following Read the paragraph and answer the questions given below it. Food poisoning can occur due to contamination of food by various bacteria and fungi.Clostridia are bacteria responsible for spoilage of cooked food. There are around 100 species of this bacteria viz. Clostridium tetani, Clostridium botulinum, etc. that are present either free living in soil or the alimentary canal of humans and other animals. The bacteria are rod- shaped and produce pottle-shaped endospores in adverse environmental conditions. These microbes cannot withstand normal oxygen levels in air and grow under anaerobic conditions. Mention the habitats where Clostridium normally exists.

Answer the following Read the paragraph and answer the questions given below it. Food poisoning can occur due to contamination of food by various bacteria and fungi.Clostridia are bacteria responsible for spoilage of cooked food. There are around 100 species of this bacteria viz. Clostridium tetani, Clostridium botulinum, etc. that are present either free living in soil or the alimentary canal of humans and other animals. The bacteria are rod- shaped and produce pottle-shaped endospores in adverse environmental conditions. These microbes cannot withstand normal oxygen levels in air and grow under anaerobic conditions. How does Clostridium survive even under adverse conditions?

Answer the following Read the paragraph and answer the questions given below it. Food poisoning can occur due to contamination of food by various bacteria and fungi.Clostridia are bacteria responsible for spoilage of cooked food. There are around 100 species of this bacteria viz. Clostridium tetani, Clostridium botulinum, etc. that are present either free living in soil or the alimentary canal of humans and other animals. The bacteria are rod- shaped and produce pottle-shaped endospores in adverse environmental conditions. These microbes cannot withstand normal oxygen levels in air and grow under anaerobic conditions. Why is Clostridium mostly found to contaminate tinned or canned foodstuff?

Answer the following Read the paragraph and answer the questions given below it. Food poisoning can occur due to contamination of food by various bacteria and fungi.Clostridia are bacteria responsible for spoilage of cooked food. There are around 100 species of this bacteria viz. Clostridium tetani, Clostridium botulinum, etc. that are present either free living in soil or the alimentary canal of humans and other animals. The bacteria are rod- shaped and produce pottle-shaped endospores in adverse environmental conditions. These microbes cannot withstand normal oxygen levels in air and grow under anaerobic conditions. Which narrow-spectrum antibiotic can be used to treat bacterial infections caused by Clostridia?

CHETANA PUBLICATION-Useful and Harmful Microbes-EXERCICE
  1. ………….is a narrow-spectrum antibiotic

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  2. Penicillin was first discovered by

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  3. ………….Proved that the anaerobic bacterium Clostridium botulinum is resp...

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  4. Write whether the following statements are true or false, if false cor...

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  5. Dengue is caused by

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  6. Becterial pneumonia is caused by

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  7. ………...can be prevented by vaccination

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  8. Malaria is caused by…………….

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  9. Bird flu and swine flu are caused by….

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  10. The Lactobacilli convert lactose, the sugar in the milk into…………….. la...

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  11. The……….. destroys harmful microbes present in the milk high pH neut...

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  12. Lactabacilli kill the harmful bacteria like ……….present in the aliment...

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  13. Which of the following is a product of fermation of carbohydrates by y...

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  14. Molasses is fermented with the help of yeast called………..

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  15. A yeast…...is used to absorb the toxins released during the production...

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  16. The bacteria which spoil cooked food are……..

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  17. …………….can grow and reproduce only in living cells.

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  18. Asexual reproduction occurs by budding in yeast.

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  19. Explain the statements: Toxins of fungal origin are called mycotoxin...

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  20. Answer the following question: How to Lactobacilli convert milk into ...

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