Enzymes Regulation MCQs : This section focuses on the "Enzymes Regulation". These Multiple Choice Questions (MCQs) should be practiced to improve the Enzymes Regulation skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
Allosteric enzymes are
A. larger than simple enzyme
B. smaller than simple enzyme
C. larger and more complex than simple enzyme
D. smaller than simple enzyme but not complex
Question 2
Intracellular enzymes
A. synthesize cellular material only
B. synthesize cellular material and perform catabolic reaction
C. synthesize cellular material and perform anabolic reaction
D. only provide energy to the cell
Question 3
Enzyme catalase has non-protein metal as
A. magnesium
B. manganese
C. iron
D. zinc
Question 4
Isozymes or iso enzymes are those enzyme which
A. have same structural forms
B. have different structural forms but identical catalytic properties
C. catalyses oxidation reactions
D. None of these
Question 5
Enzymes are
A. organic compounds produced by living organism
B. inorganic compounds
C. organic as well as inorganic compounds
D. All of the above
Question 6
Main function of an enzyme is to
A. increase the activation energy
B. decrease the activation energy
C. maintain constant activation energy
D. None of these
Question 7
Who coined the word enzyme first?
A. Kuhne
B. Pasteur
C. Liebig
D. Buchner
Question 8
The inactive protein from of enzyme is
A. apoenzyme
B. enzyme
C. haloenzyme
D. cofactor
Question 9
The inactive organic molecular portion of enzyme is
A. apoenzyme
B. coenzyme
C. holoenzyme
D. None of these
Question 10
Many enzymes consists of a protein combined with low molecular weight organic molecule called as
A. apoenzyme
B. co-enzyme
C. holoenzyme
D. co-factors
Question 11
Organic molecules that increase the rate of metabolic reactions with themselves changing are known as
A. coenzymes
B. enzymes
C. substrates
D. reactants
Question 12
Protein portion of an enzyme when it is combined with organic molecule is termed as
A. apoenzyme
B. co-enzyme
C. holoenzyme
D. co-factors
Question 13
The active form of enzyme is
A. apoenzyme
B. coenzyme
C. holoenzyme
D. None of these
Question 14
Enzymes can
A. not pass through semipermeable membrane
B. pass through semipermeable membrane
C. dissolve semipermeable membrane
D. None of these
Question 15
Enzymes are
A. organic compounds produced by living organism
B. inorganic compounds
C. organic as well as inorganic compounds
D. all of these