Enzymes and Inorganic Catalysts

Q.

Why do proteins show diversity?

Q. Ribozyme is

1. RNA with enzyme activity
2. protein enzymes in ribosomes
3. proteins in ribosomes
4. RNA with extra phosphate

Q.

Which types of plants is the enzyme RuBisCO found?

Q.

How many types of enzymes have been recognised by the International Union of Biochemistry?

1. 4

2. 5

3. 6

4. 8

Q. Which one of the following statements is correct with reference to enzymes?

1. Apoenzyme = Holoenzyme + Coenzyme
2. Holoenzyme = Apoenzyme + Coenzyme
3. Coenzyme = Apoenzyme + Holoenzyme
4. Holoenzyme = Coenzyme + Co-factor

Q.

A:-All enzymes are proteins
R:-Proteins only can catalyse living reactions

1. Both A and R are true and R is the correct explanation of A.

2. Both A and R are true but R is NOT the correct explanation of A.

3. A is true but R is false.

4. A is false but R is true.

5. Both A and R are false.
   

Q. The most abundant enzyme in the biosphere is

1. collagen
2. RuBisCO
3. trypsin
4. insulin

Q.

Which of the following work even at very high temperatures?

1. Inorganic catalysts

2. Enzymes of Archae bacteria

3. Enzymes of all living organisms

4. Both a and b