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Biology Class 11 Chapter 3
enzymes
Test 8
1.
Heat supplies which energy to molecules of an enzyme?
a) Gravitational
b) Potential
c) Electric
d) Kinetic
2.
Extreme rise in heat can ________ enzyme?
a) Denature
b) Ionize
c) Strenghthen
d) Activate
3.
The rate of reaction of enzyme doubles for reach _____ rise in temperature?
a) 100C
b) 20C
c) 200C
d) 10C
4.
Every enzyme functions most effectively over a narrow range of pH known as?
a) Optimum pH
b) Maximum pH
c) Effective pH
d) Atleast pH
5.
A slight change in pH can change the ionization of the________ at active site?
a) Glycerols
b) Amino acids
c) Fatty acids
d) Vitamins
6.
Extreme change in pH can cause the enzyme?
a) Formation
b) Maturation
c) Growth
d) Denaturation
7.
Optimum pH for Pepsin is?
a) 6.8
b) 4.50
c) 2.00
d) 5.50
8.
Optimum pH for Arginase is?
a) 9.00
b) 7.60
c) 9.70
d) 6.80
9.
Which can not be transformed into products?
a) Substrate
b) None of these
c) Both
d) Inhibitor
10.
Which form weak linkages with enzyme?
a) Reversible inhibitors
b) None of these
c) Both
d) Irreversible inhibitors
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