A demonstrable inducer is absent in (A) Allosteric enzyme (B) Constitutive enzyme (C) Inhibited enzyme (D) Co-operative enzyme ENZYMES 141 Last Answer : Answer : B...
In which of the following types of enzymes an inducer is not required? (A) Inhibited enzyme (B) Cooperative enzyme (C) Allosteric enzyme (D) Constitutive enzyme Last Answer : Answer : D...
Which of the following is a microsomal enzyme inducer? (A) Indomethacin (B) Clofibrate (C) Tolbutamide (D) Glutethamide Last Answer : Answer : D...
Why are enzymes important to a cell ? Describe two most striking characteristics of enzymes. Describe three specific types of regulation of enzyme activity. Also differentiate between constitutive and induced enzymes.
Cimetidine interacts with more drugs than ranitidine because; a) It is subjected to greater first pass metabolism b) It is a more potent enzyme inducer c) It is a more potent enzyme inhibitor d) It has better oral absorption Last Answer : c) It is a more potent enzyme inhibitor ...
Which of the following genes of the E.coli “Lac operon” codes for a constitutive protein? (A) The ‘a’ gene (B) The ‘i’ gene (C) The ‘c’ gene (D) The ‘z’ gene Last Answer : Answer : B...
The gene of lac operon which has constitutive expression is (A) i (B) c (C) z (D) p Last Answer : Answer : A...
Enzymes which are always present in an organism are known as (A) Inducible enzymes (B) Constitutive enzymes (C) Functional enzymes (D) Apoenzymes Last Answer : Answer : B...
What are constitutive enzymes? Last Answer : Enzymes whose concentration in a cell is independent of inducer are called constitutive enzymes. ...
An enzyme of pyrimidine nucleotide biosynthesis sensitive to allosteric regulation is (A) Aspartate transcarbamoylase (B) Dihydroorotase (C) Dihydroorotate dehydrogenase (D) Orotidylic acid decarboxylase Last Answer : Answer : A...
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