468 ACETIC ACID BACTERIA 



QUESTIONS. 



1. What kind of chemical process is the conversion of alcoholic liquids into 

 vinegar? 



2. What is vinegar? 



3. What generally causes the conversion of glucose into alcohol and carbon 

 dioxide ? 



4. What causes the conversion of alcohol into acetic acid and water? 



5. What is meant by the mother of vinegar? 



6. What was the first scientific name proposed for mother of vinegar? 



7. Name some acetic-acid microorganisms. 



8. Describe their morphology and their cultural characters. 



9. How do the zooglea of different acetic-acid bacteria behave toward iodin 

 solution ? 



10. What is the chemical equation for the conversion of alcohol into acetic 

 acid and water? What kind of a process is it? 



11. What is the general arrangement of the manufacture of vinegar? 



