Biology- 11 Chapter 3
Enzymes - 6
1.
The additional chemical component of an enzyme other than protein is known as?
a) Apoenzyme
b) Cofactor
c) Holoenzyme
d) Active site
2.
Which one of the following is not a cofactor of an enzyme system?
a) Cobalt
b) Copper
c) Oxygen
d) Potasium
3.
Which one of the following is a cofactor?
a) Inorganic ions
b) Coenzymes
c) Prosthetic group
d) All of these
4.
How many active sites are present in an enzyme?
a) Only three
b) Only one
c) Only two
d) Several
5.
The active site of an enzyme is composed of?
a) Nucleotides
b) Amino acids
c) Sugars
d) Fatty acids
6.
The non protein groups that combine covalently with apoenzymes and share their active sites are called as?
a) Frame works
b) Amino acids
c) Prosthetic groups
d) Active sites
7.
The protein part of an enzyme is known as?
a) Cofactor
b) Prosthetic group
c) Holoenzyme
d) Apoenzyme
8.
Enzymes are large molecules of?
a) Lipid nature
b) Carbohydrate nature
c) None of these
d) Protein nature
9.
The active site of an enzyme is?
a) Binding site
b) Catalysing site
c) Both of these
d) None of these
10.
Which one of the following unit is capable to function?
a) None of these
b) Apoenzyme
c) Apoenzyme-cofactor
d) Cofactor
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