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Biology Class 11 Chapter 3
enzymes
Test 5
1.
If non-protein part is Loosely attached,it is known as a ?
a) Activator
b) Prosthetic group
c) Co-enzyme
d) Holo-enzyme
2.
Co-enzyme is closely related to?
a) Amino acids
b) Yeast
c) Vitamins
d) Bacteria
3.
Which of the following can be used again and again?
a) Co-enzyme
b) Both
c) Holoenzyme
d) Enyme
4.
If co-enzyme is removed from its enzyme then it is known as?
a) Holoenzyme
b) Iso-enzyme
c) Pro-enzyme
d) Apo-enzyme
5.
An activated enzyme consisting of polypeptidechain and co-factor is known as?
a) Holo-enzyme
b) Apo-enzyme
c) Iso-enzyme
d) Pro-enzyme
6.
All enzymes are ?
a) Globular proteins
b) Amino acids
c) Fibrous proteins
d) Fatty acids
7.
Enzyme _______ the rate of reaction?
a) Retards
b) Decrease
c) Inhibits
d) Increase
8.
Enzymes presence does not affect?
a) Properties of products
b) Type of products
c) Both
d) Nature of products
9.
Enzymes are very ________ in their action?
a) Mature
b) Powerful
c) Sensitive
d) Specific
10.
Enzymes lower the _______ energy of the reactions?
a) Solar
b) Activation
c) Chemical
d) Potential
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