Enzymes and Application

Question: Which of the following enzyme is responsible for causing vitamin B deficiency disease beriberi?
[A].

Ascorbic acid oxidase

[B].

Thiaminase

[C].

Lipoxygenase

[D].

None of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Which of the following metallic ion is there in ascorbic acid oxidase?
[A].

Mg

[B].

Fe

[C].

Cu

[D].

Mn

Answer: Option C

Explanation:

No answer description available for this question.

Question: Discoloration can be achieved by using
[A].

sulphloydryl oxidase

[B].

proteases

[C].

anthocyanase

[D].

all of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: The bitter taste of the high protein materials is reduced by using
[A].

invertase

[B].

dectinase

[C].

protease

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Enzymes act as antimicrobials
[A].

by depriving an organism of a necessary metabolite

[B].

by generating a substances toxic to the organism

[C].

by attracting a cell wall component

[D].

all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Question: Lysozyme is naturally present in
[A].

egg white

[B].

bacteria

[C].

tears & milk

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Trichoderma β-glucanase is reported
[A].

to stabilize mashing

[B].

to convert taste fractions of dextrins to fermentable sugars in beer

[C].

to convert starch to dextrin

[D].

all of the above

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the enzyme combination is commercially used for the removal of oxygen?
[A].

Glucose oxidase-cellulase

[B].

Glucose oxidase-catalase

[C].

Glucose oxidase-lactase

[D].

All of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Lysozyme
[A].

catalyses hydrolysis of β-1-4 linkages between N-acetyl muranic acid and N-acetyl glucosamine in peptideoglycan

[B].

catalyses hydrolysis of α-1-4 linkages between N-acetyl muranic acid and N-acetyl glucosamine in peptideoglycan

[C].

catalyses hydrolysis of α-1-4 linkages between N-diacetyl muranic acid and N-diacetyl glucosamine in peptideoglycan

[D].

all of the above

Answer: Option A

Explanation:

No answer description available for this question.

Question: Soya off flavour removal may be achieved using
[A].

di acetyl reductase

[B].

β- amylase

[C].

aldehyde oxidase

[D].

protease

Answer: Option C

Explanation:

No answer description available for this question.