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Lactabacilli kill the harmful bacteria l...

Lactabacilli kill the harmful bacteria like ……….present in the alimentary canal.

A

Rhizobium

B

Saccharomyces

C

Clostridium

D

Alcanivorax

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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. 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. Mention the habitats where Clostridium normally exists.

CHETANA PUBLICATION-Useful and Harmful Microbes-EXERCICE
  1. The Lactobacilli convert lactose, the sugar in the milk into…………….. la...

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

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

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

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

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

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

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

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  9. Asexual reproduction occurs by budding in yeast.

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

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

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  12. What are the disadvantages of inorganic fertilizers?

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  13. Explain the statements: Amoxicillin is a broad-spectrum antibiotic

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  14. Explain the statements: Ethanol is produced by the fermentation of mo...

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  15. Explain the statements: Clostridium bacteria produce bottle-shaped e...

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  16. Complete the statements using the proper option from those given below...

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  17. Foam accumulates on the surface of 'dal' kept for a long time in summe...

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  18. Why are naphthalene balls kept with clothes to be put away?

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

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  20. Antibiotics can be taken only when prescribed by doctors.

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