E-PolyLearning

Welcome to the largest collection of MCQs on the Internet. Access and Discuss these Multiple choice questions for various competitive Exams and Interviews.
1. A competitive inhibitor of an enzyme is usually
a. a highly reactive compound
b. a metal ion such as Hg²⁺ or Pb²⁺
c. structurally similar to the substrate.
d. water insoluble
View Answer Report Discuss 50-50!
Answer: (c).structurally similar to the substrate.

2. Linear inhibition is sometimes called as
a. complete inhibition
b. incomplete inhibtion
c. partial inhibition
d. mixed inhibition
View Answer Report Discuss 50-50!
Answer: (a).complete inhibition

3. The types of inhibition pattern based on Michaelis Menten equation are
a. competitive
b. non-competitive
c. uncompetitive
d. all of the above
View Answer Report Discuss 50-50!
Answer: (d).all of the above

4. The effect of non-competitive inhibition on a Lineweaver-Burk Plot is that
a. it can move the entire curve to the right
b. it can change the y-intercept
c. it can change the x-intercept
d. all of these
View Answer Report Discuss 50-50!
Answer: (b).it can change the y-intercept

5. The rate-determining step of Michaelis Menten kinetics is
a. the complex formation step
b. the complex dissociation step to produce product
c. the product formation step
d. Both (a)and(c)
View Answer Report Discuss 50-50!
Answer: (b).the complex dissociation step to produce product

Page 1 of 21