Proteins and Enzymes MOCK TEST

HSST : Proteins and Enzymes MOCK TEST

🟥 QUESTIONS : 20

🟥 TIME : 20 MINS

1 / 20

1)

Pancreas produces
- (A) Three digestive enzymes and one hormone
- (B) Three types of digestive enzymes and two hormones
- (C) Two digestive enzymes and one hormone
- (D) Three digestive enzymes and no hormone

A) A

B) B

C) C

D) D

2 / 20

2)

The proteolytic enzyme rennin is found in :
1. Intestinal juice
2. Bile juice
3. Gastric juice
4. Pancreatic juice

A) 1

B) 2

C) 3

D) 4

3 / 20

3) ADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA

A) Aspartate deaminase

B) Adenosine deaminase

C) Arginine deaminase.

D) Adenosine deoxy aminase

4 / 20

4) Which Of the following Enzyme is ATP dependant.....

-
-
-

A) DNA ligase

B) Protease

C) Cytochrome

D) Dehydratase

5 / 20

5) 💦ADA deficiency can be cured by

A) Bone marrow transplantation

B) Enzyme replacement therapy

C) Both (1) and (2)

D) Blood transfusion

6 / 20

6) ADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA?

A) Adenosine Deoxyaminase

B) Adenosine Deaminase

C) Aspartate Deaminase

D) Arginine Deaminase

7 / 20

7) During chemiosmotic synthesis of ATP, protons diffuse through CF0 channels that activates ATPase enzyme. As a result, one molecule of ATP is formed when ________ passes through ATPase

A) 4H+

B) H+

C) 2H+

D) 6H+

8 / 20

8) While isolating DNA from bacteria, which of the following enzymes is not used ?

A) Lysozyme

B) Ribonuclease

C) Deoxyribonuclease

D) Protease

9 / 20

9)

Prosthetic groups differ from co-enzymes in that
1. they require metal ions for their activity
2. they (prosthetic groups) are tightly bound to
apoenzymes.
3. their association with apoenzymes is transient.
4. they can serve as co-factors in a number of enzyme-catalyzed reactions.

A) 1

B) 2

C) 3

D) 4

10 / 20

10)

An enzyme catalysing the removal of nucleotides from
ends of DNA is :
1. DNA ligase
2. Endonuclease
3. Exonuclease
4. Protease

A) 1

B) 2

C) 3

D) 4

11 / 20

11) Which enzyme polymerises RNA with defined sequences in a template independent manner ?

- (1) Peptidyl transferase
- (2) RNA polymerase
- (3) Reverse transcriptase
- (4) Polynucleotide phosphorylase

A) 1

B) 2

C) 3

D) 4

12 / 20

12) In the year _______ , the two enzymes responsible for restricting the growth of bacteriophage in Escherichia coli were isolated.

- (1) 1962
- (2) 1963
- (3) 1970
- (4) 1981

A) 1

B) 2

C) 3

D) 4

13 / 20

13) Which of the following point is incorrect about sporopollenin

A) It is one of the most resistant organic material known

B) It can withstand high temperature and strong acids and alkali

C) 2 enzymes that degrade sporopollenin are known so far

D) Pollen grains are well preserved as fossils because of presence of sporopollenin

14 / 20

14) Depiction by line diagram is

A) Sugars

B) Enzyme

C) Both a and b

D) none

15 / 20

15) A physiological uncoupling protein..

-

A) Globine

B) Thermogine

C) Valine

D) Thrombin

16 / 20

16) Most of the protein and enzymes are present in ______ structure

A) Primary structure

B) Secondary structure

C) Tirtiary structure

D) Quarternary structure

17 / 20

17)

Mad cow disease in cattle is caused by an organism
which has :
1. Inert crystalline
2. Abnormally folded protein
3. Free RNA without protein coat
4. Free DNA without protein coat

A) A

B) B

C) C

D) D

18 / 20

18)

"Ramachandran plot" is used to confirm the structure of
1. RNA
2. Proteins
3. Triacylglycerides
4. DNA

A) 1

B) 2

C) 3

D) 4

19 / 20

19) According to Central Dogma in molecular biology, the genetic information flows from :-

- (1) DNA -> RNA -> Protein
- (2) DNA -> Protein -> RNA
- (3) RNA -> DNA -> Protein
- (4) Protein -> RNA -> DNA

A) 1

B) 2

C) 3

D) 4

20 / 20

20)

. Enzyme often has additional parts in their structures that are made up of molecules other than proteins. When this additional chemical part is an organic molecule, it is called ?
- A) Cofactor
- B) Coenzyme
- C) Substrates
- D) Both A and B

A) A

B) B

C) C

D) D

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Proteins and Enzymes MOCK TEST

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