MCQS of Biology 1st Year
The rate of an enzyme catalyzed reaction
Can be reduced by inhibitors
Decreases as substrate concentration increases
Is constant under condition
Cannot be measured
The specificity of an enzyme is due to its
Protein nature
Active site
Globular shape
Cofactor
Which one of the following statements about enzymes is not true
They are sensitive to heat
They consist of proteins or without a non-proteins part
They are non-specific in their action
They change the rate of catalyzed reaction
If we add more substrate to already occurring enzymatic reaction and it has no effect on the rate of reaction, then what will be be the situation of the following
Denaturation
Saturation
Composition
Inhibition
The rate of reaction of enzyme directly depends upon
Low temperature
Nature of substrate
Maximum pH level
Amount of enzyme present at a specific time at unlimited substrate concentration
Competitive inhibitors
Do occupy active site
Destroy the structure of enzyme
Resemble structurally with substrate
Both b and c are correct
Prosthetic group is
Loosely bonded non-proteins part of an enzyme
Covalenty bonded non-protein part of an enzyme
Co-factor consists of metal ions
None of these
1 2
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