When glucose is converted into ethyl alcohol, the enzyme involved is:

• (A) Zymase
• (B) Invertase
• (C) Maltase
• (D) Diastase

The enzyme responsible for converting glucose into ethyl alcohol is known as Zymase. This process occurs during fermentation, where yeast cells utilize glucose to produce alcohol and carbon dioxide. Let’s delve deeper into how this works and the role of Zymase in the fermentation process.

Understanding Fermentation

Fermentation is a metabolic process that converts sugar into acids, gases, or alcohol. In the case of yeast, it primarily converts glucose into ethyl alcohol (ethanol) and carbon dioxide. This is particularly important in the production of alcoholic beverages and bread.

The Role of Zymase

Zymase is a complex of enzymes found in yeast that facilitates the fermentation of sugars. It catalyzes several reactions that break down glucose through glycolysis and subsequent fermentation pathways. Here’s how it works:

• Glycolysis: The first step involves breaking down glucose into pyruvate, which occurs in the cytoplasm of the yeast cells.
• Alcoholic Fermentation: In the absence of oxygen, pyruvate is then converted into ethanol and carbon dioxide. This is where Zymase plays a crucial role, as it contains the necessary enzymes to facilitate these reactions.

Other Enzymes Mentioned

To clarify the other options provided:

• Invertase: This enzyme breaks down sucrose into glucose and fructose, but it does not directly convert glucose into alcohol.
• Maltase: Maltase specifically converts maltose (a disaccharide) into two glucose molecules, which can then be fermented, but it is not the enzyme that directly converts glucose into alcohol.
• Diastase: This term generally refers to a group of enzymes that break down starch into sugars, but it is not specifically involved in the conversion of glucose to alcohol.

Conclusion

In summary, Zymase is the key enzyme that enables yeast to convert glucose into ethyl alcohol during fermentation. Understanding this process is essential for various applications in food and beverage production, as well as in biofuel development. If you have any more questions about fermentation or related topics, feel free to ask!