Question

What is anerobic respiration? Why is yeast used in alcohol and baking industry?

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Answer 1

Answer:

Respiration in yeast

They are used in bakery industry. Brewer's yeast is used in beer fermentation and in wine fermentation. Since they can survive in the absence of air they can even break down the glucose into alcohol,carbon dioxide and energy in the absence of oxygen and hence undergo anaerobic respiration.Brewing – the production of alcoholic drinks by fermentation: In brewing, anaerobic respiration is very important as it turns the glucose into a beer using yeast. Yeast is used in brewing in order to make carbon dioxide and ethanol. These are made by anaerobic respiration even if there is a good supply of oxygen.

Answer 2

ANS.

1. anerobic respiration is respiration using electron accepters other than molecular oxygen. Although oxygen is not final electron accepter, the process still uses respiration electron transport chain.

2. Baker's yeast is a common name for the strains of yeast commonly used in baking bread and bakery products, serving of a leaving agent which causes the bread to rise (expand and become lighter and softer) by converting the fermentable sugars present in the dough into carbon dioxide and ethanol.