Wine is made by mixing yeast with grapes and allowing the yeast cells to undergo fermentation. sparkling wine is a type of wine that contains high levels of dissolved carbon dioxide. what is the source of the carbon atoms in the carbon dioxide found in sparkling wine? a. ethanol b.lactic acid c. methane d. glucose
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Ответ:
The correct answer is d. glucose.
Grapes contains sucrose which is made up of its monomers glucose and fructose. On mixing yeast with grapes, alcoholic fermentation occurs in which glucose is first converted into pyruvate. In the absence of oxygen (anoxygenic conditions), pyruvate can be converted into ethanol and carbon dioxide through the alcoholic fermentation by yeast. Thus, glucose is the source of carbon dioxide.
Ответ:
Photosynthesis
Explanation:
Photosynthesis in plants converts solar energy into chemical energy using electrons and protons from water.