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What Not to Do with Grignard Reagents

Identify the ...

Question

Identify the reaction in which alcohol is formed by breakdown of sucrose in presence of an enzyme zymase.

A

Fermentation

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B

Inversion

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C

Esterification

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D

Rearrangement

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Solution

The correct option is A Fermentation
The fermentation reaction is:

$C_{12} H_{22} O_{11} + H_{2} O Zymase - -- \to 4 C_{2} H_{5} OH + 4 {CO}_{2}$

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Similar questions

Q. Enzymatic reactions are given in Column I and enzymes in Column II.

Column I	Column II
$(A)$ Maltose $\to$ Glucose	$(i)$ Zymase
$(B)$ Sucrose $\to$ Glucose $+$ Fructose	$(i i)$ Pepsin
$(C)$ Glucose $\to$ Ethyl alcohol $+ C O_{2}$	$(i i i)$ Maltase
$(D)$ Starch $\to$ Maltose	$(i v)$ Invertase
$(E)$ Proteins $\to$ Amino acids	$(v)$ Diastase

Choose the correct matching of enzymatic reaction and enzyme that catalyses the correct reaction from the codes given below.

Q. Saliva breakdowns starch in the presence of an enzyme

Q. What is the role of enzyme invertase and zymase in the manufacture of ethanol from molasses?

Q. Assertion :Saccharomyces species are utilized for making alcoholic beverages. Reason: Yeast has an enzyme called as zymase responsible for fermentations.

Q. Study the reaction given below:

In absence of any enzyme this reaction is very slow, with 200 molecules of

H_{2} C O_{3}

being formed in an hour. In presence of enzyme the reaction speeds up dramatically with about 600,000 molecules formed every second. Name the enzyme which has accelerated up the reaction by 10 million times.

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What Not to Do with Grignard Reagents

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