200 Best MCQs on Enzymes and kinetics- biochemical engineering
Q9). The active site of an enzyme remains
a).at the center of globular proteins
b).none of the above
c).rigid and does not change shape
d).complementary to the rest of the molecule
Correct Answer:
complementary to the rest of the molecule
Explaination:
Q10). Which category of enzymes belongs to class two in the international classification?
a).Hydrolases
b).Ligases
c).Transferases
d).Isomerase
Correct Answer:
Transferases
Explaination:
Q11). The Woolf-Augusteinsson-Hofstee plot of v versus v/[S] and the Eadie-Scatchard plot of v/[S] versus v do not involve reciprocals of therefore are considered to be more reliable when the error in is
a).non-significant
b).significant
c).nothing to do with the reliability
d).non significant in selected cases
Correct Answer:
significant
Explaination:
Q12). The relationship between Keq, and Vmax is known as
a).Haldane equation
b).Michaelis Menten equation
c).Numerical solution approach
d).Gibbs-Helmholtz equation
Correct Answer:
Haldane equation
Explaination:
Q13). The reciprocal equation for non competitive inhibition can be arranged to the equation for the
a).Dixon plot
b).Woolf-Augusteinsson-Hofstee plot
c).Eadie-Scatchard plot
d).Hanes-Woolf plot
Correct Answer:
Dixon plot
Explaination:
Q14). Which of the following statements is true for enzymatically catalyzed reaction?
a).The activation energy of the reaction is lowered so that a larger proportion of the substrate qualifies to overcome it
b).Additional substrate molecules are energized to overcome the activation energy of the reaction
c).The activation energy of the reaction is increased, thus decreasing the likelihood that any substrate molecules will overcome it
d).The activation energy of the reaction is lowered so that a fewer substrate molecules can overcome it
Correct Answer:
The activation energy of the reaction is lowered so that a larger proportion of the substrate qualifies to overcome it
Explaination:
Q15). Which of the following common drugs is not a specific enzyme inhibitor?
a).Iodine
b).Methotrexate
c).Sulfbnilamide
d).Penicillin
Correct Answer:
Iodine
Explaination:
Q16). The enzyme inhibition can occur by
a).reversible inhibitors
b).irreversible inhibitors
c).Both (a) and (b)
d).None of these
Correct Answer:
Both (a) and (b)
Explaination: