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Quiz 1
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Q.1
Which of the following function is catalyzed by Racemases?
a) Removal of water
b) Intramolecular transfer of a functional group
c) Interconversion of L and D stereoisomers
d) Inversion of asymmetric carbon atom
Q.2
The zymogen is an inactive precursor of an active enzyme.
a) True
b) False
Q.3
Which of the following is an example of ligases enzyme?
a) Mutases
b) Epimerases
c) Racemases
d) Carboxylases
Q.4
What is the binding energy?
a) Free energy released in the formation of enzyme-substrate interaction
b) The energy required to form a bond
c) The energy required to bind substrate
d) It is the activation energy
Q.5
Which of the following is INCORRECT for the lock-and-key model?
a) It is used to describe the binding process
b) The active site of the enzyme is complementary to the substrate
c) It demonstrates enzyme-substrate complex
d) The binding of the substrate produces a conformational change in enzyme
Q.6
Which of the following is not a catalytic strategy for an enzyme to perform specific reaction?
a) Covalent catalysis
b) Metal ion catalysis
c) Michaelis constant
d) Acid-base catalysis
Q.7
What is the SI unit of enzyme activity?
a) Km
b) Kat
c) Kcat
d) Vmax
Q.8
Which of the following is not an example of irreversible enzyme inhibitor?
a) Cyanide
b) Sarin
c) Diisopropyl phosphoflouridate (DIPF)
d) Statin drugs
Q.9
Lineweaver-Burk plot is also known as______
a) Double reciprocal plot
b) Hanes-Woolf plot
c) Eadie-Hofstee plot
d) Steady-state equation
Q.10
Name the enzyme which is found in tears, sweat, and an egg white?
a) Ribozyme
b) Lysozyme
c) Zymogen
d) Isozymes
Q.11
What is an Isozyme?
a) Same structure, different function
b) Different structure, the same function
c) Same structure, the same function
d) Different structure, different function
0 h : 0 m : 1 s
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