Enzyme Preparation and Usage MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Enzyme Preparation and Usage, 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 Preparation and Usage 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 Preparation and Usage mcq questions that explore various aspects of Enzyme Preparation and Usage problems. Each MCQ is crafted to challenge your understanding of Enzyme Preparation and Usage 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 Preparation and Usage MCQs are your pathway to success in mastering this essential Enzyme Technology topic.

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Enzyme Preparation and Usage MCQs | Page 7 of 12

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Q61.
Which of the following do not show stereo specificity?

a.

L-lactate dehydrogenase

b.

Epimerase

c.

Salivary α-amylase

d.

L-glucose oxidase

Discuss
Answer: (b).Epimerase
Q62.
Which type of specificity is represented in the following reaction?

Glucose \(_{\overrightarrow{Glucokinase}}\) Glucose-6-phosphate

a.

Relative substrate specificity

b.

Absolute substrate specificity

c.

Broad substrate specificity

d.

Stereo specificity

Discuss
Answer: (b).Absolute substrate specificity
Q63.
Which of the following is not an example of absolute substrate specificity?

a.

Glucose to glucose-6-phosphate by glucokinase

b.

Hexokinase phosphorylating one or more kind of hexoses

c.

Lactose to glucose and galactose by lactase

d.

Urea to ammonia by urease

Discuss
Answer: (b).Hexokinase phosphorylating one or more kind of hexoses
Q64.
Which of the following is not true for allosteric enzyme?

a.

Greek word ‘allo’ means other and ‘steros’ means site

b.

Enzymes having other site

c.

Regulatory metabolites are called effector or modulator or modifier

d.

Each of two or more enzymes with identical function but different structure

Discuss
Answer: (d).Each of two or more enzymes with identical function but different structure
Q65.
The enzymes having allosteric sites, other than catalytic site which is used for binding for regulatory metabolites is referred to as _________

a.

isoenzyme

b.

biosensor

c.

allosteric enzymes

d.

effectors

Discuss
Answer: (c).allosteric enzymes
Q66.
Effectors that inhibit enzyme activity are termed as ____________

a.

positive effectors

b.

modulators

c.

negative effectors

d.

inhibitor

Discuss
Answer: (c).negative effectors
Q67.
________ is referred to as effectors which increase the enzyme activity.

a.

Positive effectors

b.

Modifier

c.

Negative effectors

d.

Inhibitor

Discuss
Answer: (a).Positive effectors
Q68.
Which of the following is not an inhibitor of pyruvate dehydrogenase in conversion pyruvate to acetyl CoA?

a.

Citrate

b.

ATP

c.

NADH

d.

Acetyl CoA

Discuss
Answer: (a).Citrate
Q69.
Which of the enzyme ATP does not act as an inhibitor?

a.

Isocitrate dehydrogenase

b.

Phosphofructokinase-1

c.

Glycogen phosphorylase

d.

Fructose-1,6- bisphosphatase

Discuss
Answer: (d).Fructose-1,6- bisphosphatase
Q70.
Which of the following is not true of feedback allosteric inhibition in multienzyme system?

a.

First enzyme of the sequence is regulatory allosteric enzyme

b.

The enzyme is inhibited by the end product of the multienzyme system

c.

Allosteric enzymes obey Miachelis-Menten kinetics

d.

The whole enzyme system slows down to bring the rate of production of its end product back into balance when the cell needs it

Discuss
Answer: (c).Allosteric enzymes obey Miachelis-Menten kinetics
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