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Amino Acids & Proteins – Multiple Choice Questions (Set 1)

July 27, 2018February 3, 20190381

Q.) Sulphur containing amino acid is

Asparagine

Leucine

Valine

Methionine

Q.) All proteins contain the

Different amino acids

Only a few amino acids

Same 20 amino acids

300 Amino acids occurring in nature

Q.) pH (isoelectric pH) of alanine is

6.6

6.8

6.02

7.2

Q.) Proteins contain

Both (A) and (B)

Only L- α - amino acids

DL-Amino acids

Only D-amino acids

Q.) All the following are sulphur containing amino acids found in proteins except

Threonine

Methionine

Cysteine

Valine

Q.) An aromatic amino acid is

Tyrosine

Lysine

Taurine

Arginine

Q.) An example of sulphur containing amino acid is

2-Amino-3-hydroxypropanoic acid

2-Amino-3-mercaptopropanoic acid

Amino acetic acid

2-Amino-3-methylbutanoic acid

Q.) At neutral pH, a mixture of amino acids in solution would be predominantly:

Nonpolar molecules

Positive and monovalent

Hydrophobic

Dipolar ions

Q.) The optically inactive amino acid is

Threonine

Serine

Valine

Glycine

Q.) The true statement about solutions of amino acids at physiological pH is

All amino acids contain both positive and negative charges

Some amino acids contain only positive charge

All amino acids contain positively charged side chains

All amino acids contain negatively charged side chains

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Q.) Sulphur containing amino acid is

Q.) All proteins contain the

Q.) pH (isoelectric pH) of alanine is

Q.) Proteins contain

Q.) All the following are sulphur containing amino acids found in proteins except

Q.) An aromatic amino acid is

Q.) An example of sulphur containing amino acid is

Q.) At neutral pH, a mixture of amino acids in solution would be predominantly:

Q.) The optically inactive amino acid is

Q.) The true statement about solutions of amino acids at physiological pH is

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