Question:

During the formation of bread it becomes porous due to release of $CO_2$ by the action of :-

Updated On: May 1, 2024
  • Yeast
  • Bacteria
  • Virus
  • Protozoans.
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The Correct Option is A

Solution and Explanation

Saccharomyces converts starch or sugars to pyruvic acid through EM P pathway. Then this pyruvic acid is converted to acetaldehyde and finally to ethyl alcohol in the absence of oxygen. This entire process is called fermentation.C6H12O6-->2CH2COCOOH-->2C2H3OH+2CO2 This released carbon dioxide from yeast makes the dough to rise and gives spongy nature to bread.
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Questions Asked in NEET exam

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Concepts Used:

Microbes in Human Welfare

There are several valuable microorganisms that are beneficial to humans in various manners such as:

In Household Products

  1. Fermentation of milk to produce yogurt.
  2. Milk cuddling to compose curd, cheese, and paneer.

In Industrial Products

  1. Production of beverages such as wine, beer, whiskey, brandy, or rum.
  2. Production of antibiotics such as Penicillin and other chemical substances to kill or retard the expansion of disease-causing microbes.

Fermented Beverages

  1. A fermentor is used to produce microbes on a large scale for industrial purposes.
  2. The brewer’s yeast (Saccharomyces cerevisiae) is used to make ethanol. At this time, the yeast ferments malted cereals and fruit juices.

Antibiotics

  1. The term antibiotic means “against life”. These materials can kill or destroy the growth of other microbes.