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Chapter 3 - Enzymes - Part 4
1.
Enzyme are biologically highly active.
a) False
b) True
2.
Cell metabolism may proceed better in the absence of enzymes.
a) False
b) True
3.
Enzymes are largely proteinaceous in their chemical nature.
a) False
b) True
4.
Some enzymes have a non-protein part called co-factor.
a) True
b) False
5.
The non-protein part covalently bonded to the protein part of enzyme is co-enzyme.
a) False
b) True
6.
Peprinogen is an inactive enzyme, precursor of pepsin.
a) True
b) False
7.
Ernst Mischer proposed a �lock and key� model to study enzyme � substrate interaction.
a) True
b) False
8.
Mitochondria and Chloroplasts do not contain enzymes.
a) False
b) True
9.
In human body 37
o
C is the maximum temperature for enzymatic activities.
a) True
b) False
10.
Optimum pH value for enterokinase is 5.50.
a) True
b) False
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