Question

(6) Glucose and alcohol are prepared from the _____​

Answer 1

Answer:

Ethanol fermentation, also called alcoholic fermentation, is a biological process which converts sugars such as glucose, fructose, and sucrose into cellular energy, producing ethanol and carbon dioxide as by-products.

Answer 2

Answer:

Glucose and alcohol are prepared from the Ethanol fermentation

Explanation:

A biochemical process known as "alcoholic fermentation," which also produces the byproducts ethanol and carbon dioxide, turns carbohydrates like glucose, fructose, and sucrose into cellular energy.

A biochemical process known as "alcoholic fermentation," which also produces the byproducts ethanol and carbon dioxide, turns carbohydrates like glucose, fructose, and sucrose into cellular energy. Alcoholic fermentation is regarded as an anaerobic process because yeasts carry out this change without the presence of air. It also occurs in some aquatic species, such as goldfish and carp, where it works in conjunction with lactic acid fermentation to produce energy when oxygen is in short supply.

Alcoholic drinks, ethanol gasoline, and bread dough rising all depend on ethanol fermentation.

The chemical equations below summarize the fermentation of sucrose (C12H22O11) into ethanol (C2H5OH). Alcoholic fermentation converts one mole of glucose into two moles of ethanol and two moles of carbon dioxide, producing two moles of ATP in the process.

C6H12O6 → 2 C2H5OH + 2 CO2

Sucrose is a sugar composed of glucose linked to fructose. In the first step of alcoholic fermentation, the enzyme invertase cleaves the glycosidic linkage between the glucose and fructose molecules.

C12H22O11 + H2O + invertase → 2 C6H12O6

Next, each glucose molecule is broken down into two pyruvate molecules in a process known as glycolysis.[2] Glycolysis is summarized by the equation:

C6H12O6 + 2 ADP + 2 Pi + 2 NAD+ → 2 CH3COCOO− + 2 ATP + 2 NADH + 2 H2O + 2 H+

CH3COCOO− is pyruvate, and Pi is inorganic phosphate. Finally, pyruvate is converted to ethanol and CO2 in two steps, regenerating oxidized NAD+ needed for glycolysis:

1. CH3COCOO− + H+ → CH3CHO + CO2

catalyzed by pyruvate decarboxylase

2. CH3CHO + NADH + H+ → C2H5OH + NAD+

This reaction is catalyzed by alcohol dehydrogenase (ADH1 in baker's yeast).

As shown by the reaction equation, glycolysis causes the reduction of two molecules of NAD+ to NADH. Two ADP molecules are also converted to two ATP and two water molecules via substrate-level phosphorylation.

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