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Question

Colonies of yeast fail to multiply in water, but multiply in sugar solution. Give one reason for this.


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Solution

Yeast:

  1. In the kingdom of fungi, yeasts are eukaryotic microorganisms.
  2. They are chemoorganotrophs, meaning they obtain their energy from organic substances.
  3. Various sugars are used to produce carbon.
  4. As sugars are fermented by yeasts and ethanol is produced.
  5. Therefore, sugar gives yeasts energy, which aids in carrying out numerous life activities.
  6. Alcoholic fermentation is a sophisticated biochemical process in which yeasts transform sugars into ethanol, carbon dioxide, and other metabolic byproducts.

Sugar solution:

It provides energy and is a source of carbon.


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