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GUJCET 2025 Chemistry Paper

Question : 19 of 40

Marks: +1, -0

Which enzyme is used for fermentation of glucose?

Solution:

Concept:

Fermentation of glucose is catalysed by the enzyme zymase, which is present in yeast.

Explanation:

Zymase converts glucose into ethanol and carbon dioxide.

The reaction is:

\mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6 \xrightarrow{\text{Zymase}} 2\mathrm{C}_2\mathrm{H}_5\mathrm{OH} + 2\mathrm{CO}_2

Sucrase, maltase, and invertase act on other sugars, not on glucose fermentation.

So, the correct enzyme is zymase.

Answer:

D. Zymase

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