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Uses of Yeasts and Fungi in Beverage Manufacturing

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Uses of Yeasts and Fungi in Beverage Manufacturing

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Questions and Answers

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?

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?

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?

Fermentation of germinating barley Signup and view all the answers

What is the role of antibiotics?

Killing or stopping the growth of certain microbes Signup and view all the answers

Which harmful fungi cause diseases in humans?

Athlete’s foot and ringworm Signup and view all the answers

What is the process known as when nitrogen gas in the atmosphere is converted into nitrates?

Nitrogen fixation Signup and view all the answers

Which type of bacteria is responsible for converting ammonium salt in the soil into nitrites?

Nitrosomonas bacteria Signup and view all the answers

What happens to the proteins present in waste materials when putrefying bacteria and fungi act on them in the soil?

They are converted into nitrates Signup and view all the answers

How do green plants obtain nitrates for their growth and protein synthesis?

By absorbing nitrates from the soil through their roots Signup and view all the answers