Amino Acids,Peptides and Proteins MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Amino Acids,Peptides and Proteins, a fundamental topic in the field of Biochemistry. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Amino Acids,Peptides and Proteins 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 Amino Acids,Peptides and Proteins mcq questions that explore various aspects of Amino Acids,Peptides and Proteins problems. Each MCQ is crafted to challenge your understanding of Amino Acids,Peptides and Proteins principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Biochemistry tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Amino Acids,Peptides and Proteins MCQs are your pathway to success in mastering this essential Biochemistry topic.

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Amino Acids,Peptides and Proteins MCQs | Page 4 of 31

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Q31.
Which of the following is not an essential amino acid?

a.

Aspartic acid

b.

Glutamic acid

c.

Glycine

d.

All of these

Discuss
Answer: (d).All of these
Q32.
Which of the following is not a sensible grouping of amino acids based on their polarity properties?

a.

Ala, Leu, and Val

b.

Arg, His, and Lys

c.

Phe, Trp, and Tyr

d.

Asp, Ile, and Pro

Discuss
Answer: (d).Asp, Ile, and Pro
Q33.
Proteins and macromolecular structures take on their higher order structures

a.

by self-assembly

b.

with the help of molecular chaperons

c.

with the help of precursor sequences that are removed from the final structures

d.

all of the above

Discuss
Answer: (d).all of the above
Q34.
During successful purification scheme, this may be expected that the

a.

specific activity increases

b.

specific activity decreases

c.

number of proteins in the sample decreases

d.

both (a) and (c)

Discuss
Answer: (d).both (a) and (c)
Q35.
In ion-exchange chromatography

a.

proteins are separated on the basis of their net charge

b.

proteins are separated on the basis of their size

c.

proteins are separated on the basis of their shape

d.

either (b) or (c)

Discuss
Answer: (a).proteins are separated on the basis of their net charge
Q36.
Which of the following may be added to stabilize the protein after yeast cells disruption?

a.

NaCl

b.

Protease inhibitor

c.

AMP

d.

All of these

Discuss
Answer: (d).All of these
Q37.
Gel-filtration chromatography separates on the basis of

a.

size and shape using porous beads packed in a column

b.

size using porous beads packed in a column

c.

shape using porous beads packed in a column

d.

none of the above

Discuss
Answer: (a).size and shape using porous beads packed in a column
Q38.
Affinity chromatography deals with the

a.

specific binding of a protein constituents for another molecule

b.

protein - protein interaction

c.

protein - carbohydrate interaction

d.

none of the above

Discuss
Answer: (a).specific binding of a protein constituents for another molecule
Q39.
A purified protein sample contains 10 ฮผg of protein and has an enzyme activity of 1 m mole of ATP synthesized/sec (1 unit). What is the specific activity of the final purified sample?

a.

1,000 units/mg

b.

10,000 units/mg.

c.

100,000 units/mg

d.

1,000,000 units/mg

Discuss
Answer: (c).100,000 units/mg
Q40.
Proteins separation can be carried out on the basis of

a.

net charge

b.

solubility in salt solutions

c.

size or mass

d.

all of these

Discuss
Answer: (d).all of these
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