Biochem - Enzymes and Applications 1 Flashcards
1
Q
- β-amylase is
A
- Both (b) and (c)
2
Q
- Juice clarification extraction is facilitated by using
A
- Cellulases
3
Q
- Lysozyme is naturally present in
A
- Tears & milk
4
Q
- Enzymes act as antimicrobials
A
- All of the above
5
Q
- Trichoderma β-glucanase is reported
A
- All of the above
6
Q
- The bitter taste of the high protein materials is reduced by using
A
- Protease
7
Q
- Sulphydryl oxidase is used for
A
- UHT milk off flavor removal
8
Q
- α-amylase is an endo enzyme which requires
A
- Ca
9
Q
- Liquefaction of starch to dextrin is carried out by
A
- α-amylase
10
Q
- Which is true about rennet?
A
- It is a mixture of protease chymosin and pepsin
11
Q
- Milk digestibility is improved by using
A
- Lactase
12
Q
- Which of the following mainly serve to convert starch into high fructose corn syrup (HFCS)?
A
- All of these
13
Q
- Lysozyme
A
- Catalyses hydrolysis of β-1-4 linkages between N-acetyl muranic acid and N-acetyl glucosamine in peptidoglycan
14
Q
- Hersperidinase is used for
A
- Juice debittering
15
Q
- Which of the following metallic ion is there in ascorbic acid oxidase?
A
- Cu
16
Q
- Which of the enzyme combination is commercially used for the removal of oxygen?
A
- Glucose oxidase-catalase
17
Q
- The enzyme used to reduce bitterness of grapes commonly contains
A
- Both (a) and (b)
18
Q
- Citrus juice debittering can be carried out using
A
- Limoninase
19
Q
- Which of the following enzyme is responsible for causing vitamin B deficiency disease beriberi?
A
- Thiaminase
20
Q
- Soya off flavour removal may be achieved using
A
- Di acetyl reductase
21
Q
- The reduction in off flavour of beer is practiced through
A
- Diacetyl reductase
22
Q
- Discoloration can be achieved by using
A
- All of these
23
Q
- The prosthetic group present in phenolase enzyme is
A
- Cu
24
Q
- Enzymes degrade, alter or synthesize a food component through
A
- All of the above
25
Q
- The enzyme β-galactosidase is also known as
A
- Both (a) and (b)
26
Q
- Chymosin hydrolyses the bond between
A
- Phenyl alanine and methionine
