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Sometimes, yoghurt becomes bitter and fr...

Sometimes, yoghurt becomes bitter and froths up. Why does this happen?

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CHETANA PUBLICATION-Useful and Harmful Microbes-EXERCICE
  1. Why do those leather articles not get spoilt during the summer or wint...

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  2. Why do doctors advise you to take yoghurt or buttermilk if you have in...

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  3. Sometimes, yoghurt becomes bitter and froths up. Why does this happen?

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  4. Which different milk products are obtained at home by fermentation of ...

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  5. Recently, it has been made compulsory in India and some other countrie...

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  6. Chapattis made from wheat only swell up but bread becomes spongy, soft...

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  7. Salt is applied on the inner surface of pickle jars and the pickle is ...

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  8. Which preservatives are mixed with ready-to eat foods to prevent them ...

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  9. Use your brain power Which plant and animal diseases are caused by m...

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  10. Complete the following table: The spread and prevention of disease

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  11. Different species of Clostridium bacteria and the diseases caused by t...

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  12. Bring 'active dry yeast' from the market. Mix a spoonful of yeast, two...

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  13. How is alcohol produced?

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  14. Answer the following question: What are the uses of Lactobacilli?

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  15. What is Penicillin? What is it used for?

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  16. How was the antibiotic penicillin discovered?

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  17. What are the precautions to be followed while taking antibiotics?

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  18. How can we observe Rhizobium bacteria in the roots of leguminous plant...

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  19. Antibiotics mainly act against………………… bacteria viruses algae fun...

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  20. AIDS is caused by…………………..

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