Enzymes And Application(Engineering > Biochemical Engineering ) Questions and answers for exam Preparation

Question 1. β-amylase is

endoenzyme
exoenzyme
saccharifying enzyme
both (b) and (c)

Explanation:-

Answer: Option D. -> both (b) and (c)

Question 2. Juice clarification extraction is facilitated by using

cellulases
amylase
inulinase
lactase

Explanation:-

Answer: Option A. -> cellulases

Question 3. Lysozyme is naturally present in

egg white
bacteria
tears & milk
all of these

Explanation:-

Answer: Option D. -> all of these

Question 4. Enzymes act as antimicrobials

by depriving an organism of a necessary metabolite
by generating a substances toxic to the organism
by attracting a cell wall component
all of the above

Explanation:-

Answer: Option D. -> all of the above

Question 5. Trichoderma β-glucanase is reported

to stabilize mashing
to convert taste fractions of dextrins to fermentable sugars in beer
to convert starch to dextrin
all of the above

Explanation:-

Answer: Option A. -> to stabilize mashing

Question 6. The bitter taste of the high protein materials is reduced by using

invertase
dectinase
protease
none of these

Explanation:-

Answer: Option C. -> protease

Question 7. Sulphydryl oxidase is used for

discoloration
clarification of images
UHT milk off flavour removal
all of these

Explanation:-

Answer: Option C. -> UHT milk off flavour removal

Question 8. α-amylase is an endo enzyme which requires

Ca
Cu
Mn
None of these

Explanation:-

Answer: Option A. -> Ca

Question 9. Liquefaction of starch to dextrin is carried out by

α-amylase
cellulase
pectinase
all of these

Explanation:-

Answer: Option A. -> α-amylase

Question 10. . Which is true about rennet?

It is a mixture of protease chymosin and pepsin
It is a mixture of rennin and pepsin
Both (a) and (b)
none of the above

Explanation:-

Answer: Option C. -> Both (a) and (b)