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MCQs

Total Questions : 47 | Page 2 of 5 pages
Question 11. The lock and key model deals with flexible nature of enzymes.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 12. Lock and key model was proposed by ______________ in 1890.
  1.    Henri
  2.    Miachelis and Menten
  3.    Emil Fischer
  4.    Daniel Koshland
 Discuss Question
Answer: Option C. -> Emil Fischer
Answer: (c).Emil Fischer
Question 13. The study of rates of chemical reactions that are catalyzed by enzymes is referred to as ______________
  1.    first order reaction kinetics
  2.    zero order reaction kinetics
  3.    chemical kinetics
  4.    enzyme kinetics
 Discuss Question
Answer: Option D. -> enzyme kinetics
Answer: (d).enzyme kinetics
Question 14. In induced fit model, only a specific substrate can bind and produce desirable reaction.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 15. The target substrate molecules bind to active site of the enzyme transforming into products through a series of steps known as the ____________
  1.    enzyme kinetics
  2.    enzymatic mechanism
  3.    chemical kinetics
  4.    zero order reaction kinetics
 Discuss Question
Answer: Option B. -> enzymatic mechanism
Answer: (b).enzymatic mechanism
Question 16. In the following plot, what does X represent?In The Following Plot, What Does X Represent?
  1.    Vₘₐₓ
  2.    Kₘ/Vₘₐₓ
  3.    –1/Kₘ
  4.    Sₘₐₓ
 Discuss Question
Answer: Option C. -> –1/Kₘ
Answer: (c).–1/Kₘ
Question 17. What does the following plot represents?What Does The Following Plot Represents?
  1.    Miachelis Menten plot
  2.    Lineweaver Burk plot
  3.    Eadie-Hofstee plot
  4.    Hanes plot
 Discuss Question
Answer: Option C. -> Eadie-Hofstee plot
Answer: (c).Eadie-Hofstee plot
Question 18. In lock and key model, the enzyme catalyzed reaction may produce an adverse reaction.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 19. The energy required to attain transition state is referred to as _____________
  1.    Gibbs free energy
  2.    Activation energy
  3.    Standard free energy change
  4.    pH
 Discuss Question
Answer: Option B. -> Activation energy
Answer: (b).Activation energy
Question 20. The type of catalysis wherein the proton donation or acceptance is done by water molecule is referred to as _____________
  1.    substrate collision theory
  2.    lock and key model
  3.    general acid-base catalysis
  4.    specific acid-base catalysis
 Discuss Question
Answer: Option D. -> specific acid-base catalysis
Answer: (d).specific acid-base catalysis

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