A good score is around 80% in this quiz.

1. What is the order of reaction, if rate of reaction depends upon the concentration?

1. zero order
2. no order
3. more than zero order
4. first order

2. What does “k” denotes in the equation:

V= k[S]

And what is the unit of “k”?

1. Equilibrium constant and its unit is second2
2. Equilibrium constant and its unit is second-1
3. First order and its unit is second2
4. First order and its unit is second-1

3. What is the order of reaction, if it depends on two different molecules?

1. zero order
2. first order
3. second order
4. third order

4. What is the order of reaction, if it depends on two molecules of same substrate?

1. zero order
2. first order
3. second order
4. third order

5. What is the value of rate constant in second order reaction?

1. Ms
2. M
3. s
4. M-1 s-1

6. What is the relationship between constant and activation energy?

1. no relationship
2. directly proportional
3. inversely proportional
4. can’t be determined

7. How enzymes decrease activation energy?

1. restricting the movement of substrate
2. reducing entropy
3. making weak interactions
4. all of the above

8. What is binding energy, DGB?

1. Energy derived from enzyme-substrate interaction
2. Energy derived from enzyme-product interaction
3. Energy derived from product-substrate interaction
4. None of the above

9. Which energy is mainly responsible for lowering activation energy?

1. activation energy
2. transition energy
3. binding energy
4. none of the above

10. In which state weak interactions are optimized?

1. initial state
2. final state
3. intermediate state
4. transition state

11. In which state, substrate specifically to the enzyme active site?

1. initial state
2. final state
3. intermediate state
4. transition state

12. Which scientist proposed lock and key model in 1894?

1. Daniel Koshland
2. Emil Fischer
3. Einstein
4. Michael

13. Who were the first scientists to propose that enzyme must me complementary to the reaction transition state?

1. Michael Polanyi and Haldane
2. Linus Pauling and Haldane
3. Haldane
4. Emil Fischer

14. Who elaborated the work of Michael Polanyi and Haldane in year1946?

1. Daniel Koshland
2. Emil Fischer
3. Linus Pauling
4. Einstein

15. What are the physical and thermodynamic factors which are responsible for lowering of activation energy?

1. reduction in entropy
2. increase in entropy
3. lowers binding energy
4. none of these

16. What is induced fit?

1. when enzyme change shape due to absence of substrate
2. when enzyme do not change shape due to absence of substrate
3. when enzyme change shape due to presence of substrate
4. when enzyme do not change shape due to presence of substrate

17. Who postulated induced fit in year1958?

1. Daniel Koshland
2. Emil Fischer
3. Linus Pauling
4. Einstein

18. Name specific catalytic group which contribute to catalysis?

1. alumina
2. glucose
3. acetic acid
4. none of the above

19. Specific acid-base catalysis uses which ions?

1. H+
2. OH-
3. Both a and b
4. None of the above

20. What is general acid-base catalysis?

1. use proton donors
2. use of proton acceptors
3. no use water as proton acceptor or donor
4. all of the above

ANSWERS:

1. 1
2. 2
3. 3
4. 3
5. 4
6. 2
7. 4
8. 1
9. 3
10. 4
11. 4
12. 2
13. 1
14. 3
15. 1
16. 3
17. 1
18. 4
19. 3
20. 4

More enzyme quiz related articles, refer:

1. General Biochemistry
2. Quiz on Enzymes
3. Quiz on Enzymes 2
4. Quiz on Enzymes 3
5. Quiz on Enzyme Kinetics
6. Enzyme Quiz