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Questions and Answers
What is the role of lactobacilli bacteria in the process described?
What is the role of lactobacilli bacteria in the process described?
- Converting lactose sugar into lactic acid (correct)
- Converting lactic acid into lactose sugar
- Converting lactic acid into milk
- Converting milk into curd
In the production of alcohol, wine, and beer, what is the role of yeast?
In the production of alcohol, wine, and beer, what is the role of yeast?
- Growing on natural sugars present in grains and crushed fruit juices (correct)
- Converting sugar into lactic acid
- Converting alcohol into sugar
- Producing lactic acid from milk
What is the significance of Louis Pasteur's discovery in 1857 relating to fermentation?
What is the significance of Louis Pasteur's discovery in 1857 relating to fermentation?
- Discovery of antibiotics
- Conversion of sugar into alcohol by the action of microbes like yeast (correct)
- Manufacturing of breads, pastries, and cakes
- Conversion of alcohol into sugar
How is beer prepared?
How is beer prepared?
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What is the role of antibiotics?
What is the role of antibiotics?
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Which harmful fungi cause diseases in humans?
Which harmful fungi cause diseases in humans?
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What is the process known as when nitrogen gas in the atmosphere is converted into nitrates?
What is the process known as when nitrogen gas in the atmosphere is converted into nitrates?
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Which type of bacteria is responsible for converting ammonium salt in the soil into nitrites?
Which type of bacteria is responsible for converting ammonium salt in the soil into nitrites?
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What happens to the proteins present in waste materials when putrefying bacteria and fungi act on them in the soil?
What happens to the proteins present in waste materials when putrefying bacteria and fungi act on them in the soil?
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How do green plants obtain nitrates for their growth and protein synthesis?
How do green plants obtain nitrates for their growth and protein synthesis?
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