Enzyme Kinetics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Enzyme Kinetics, a fundamental topic in the field of Enzyme Technology. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Enzyme Kinetics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Enzyme Kinetics mcq questions that explore various aspects of Enzyme Kinetics problems. Each MCQ is crafted to challenge your understanding of Enzyme Kinetics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Enzyme Technology tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Enzyme Kinetics MCQs are your pathway to success in mastering this essential Enzyme Technology topic.

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Enzyme Kinetics MCQs | Page 1 of 5

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Q1.
The study of rates of chemical reactions that are catalyzed by enzymes is referred to as ______________

a.

first order reaction kinetics

b.

zero order reaction kinetics

c.

chemical kinetics

d.

enzyme kinetics

Discuss
Answer: (d).enzyme kinetics
Q2.
Lock and key model was proposed by ______________ in 1890.

a.

Henri

b.

Miachelis and Menten

c.

Emil Fischer

d.

Daniel Koshland

Discuss
Answer: (c).Emil Fischer
Q3.
The lock and key model deals with flexible nature of enzymes.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q4.
In induced fit model, only a specific substrate can bind and produce desirable reaction.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q5.
The target substrate molecules bind to active site of the enzyme transforming into products through a series of steps known as the ____________

a.

enzyme kinetics

b.

enzymatic mechanism

c.

chemical kinetics

d.

zero order reaction kinetics

Discuss
Answer: (b).enzymatic mechanism
Q6.
When the free energy occurs at standard conditions, it is termed as ______________

a.

Activation energy

b.

pKₐ

c.

Standard free energy change

d.

Gibbs free energy

Discuss
Answer: (c).Standard free energy change
Q7.
Which of the following is not true for substrate collision theory?

a.

Both enzyme and substrate stumble upon each other

b.

Both enzyme and substrate provide good molecular orbital interactions

c.

Specificity of the substrate binding site

d.

Both enzyme and substrate should be flexible in forming transition states

Discuss
Answer: (c).Specificity of the substrate binding site
Q8.
The disruption of interactions between substrate and solvent is referred to as __________

a.

desolvation

b.

molecular orbital steering

c.

protonation

d.

deprotonation

Discuss
Answer: (a).desolvation
Q9.
Which of the following is not explained by molecular orbital steering?

a.

The juxtaposition of the side chain groups of amino-acid and the reactive groups of the substrate is not sufficient for proper catalysis

b.

Overwhelm the vander waals repulsive forces that happen commonly between them

c.

The active residues should guide the groups in the substrate for exact interaction by thermal vibration due to elevated temperature

d.

Thermal vibration create motion in the active site amino acid side chain that direct reactive groups in the substrate to interact

Discuss
Answer: (c).The active residues should guide the groups in the substrate for exact interaction by thermal vibration due to elevated temperature
Q10.
If the catalysis involves participation of small organic molecules, cofactors, and amino-acid side chains from the enzyme is termed as ____________

a.

specific acid base catalysis

b.

general acid base catalysis

c.

substrate collision theory

d.

lock and key model

Discuss
Answer: (b).general acid base catalysis
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