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

July 27, 2018February 3, 20190296

Q.) An aromatic amino acid is

Arginine

Lysine

Taurine

Tyrosine

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

Methionine

Threonine

Cysteine

Valine

Q.) All proteins contain the

300 Amino acids occurring in nature

Different amino acids

Only a few amino acids

Same 20 amino acids

Q.) Proteins contain

DL-Amino acids

Only D-amino acids

Both (A) and (B)

Only L- α - amino acids

Q.) An example of sulphur containing amino acid is

2-Amino-3-hydroxypropanoic acid

2-Amino-3-mercaptopropanoic acid

2-Amino-3-methylbutanoic acid

Amino acetic acid

Q.) Sulphur containing amino acid is

Methionine

Leucine

Asparagine

Valine

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

All amino acids contain positively charged side chains

All amino acids contain negatively charged side chains

All amino acids contain both positive and negative charges

Some amino acids contain only positive charge

Q.) pH (isoelectric pH) of alanine is

7.2

6.8

6.6

6.02

Q.) The optically inactive amino acid is

Threonine

Valine

Serine

Glycine

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

Dipolar ions

Nonpolar molecules

Hydrophobic

Positive and monovalent

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Q.) An aromatic amino acid is

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

Q.) All proteins contain the

Q.) Proteins contain

Q.) An example of sulphur containing amino acid is

Q.) Sulphur containing amino acid is

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

Q.) pH (isoelectric pH) of alanine is

Q.) The optically inactive amino acid is

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

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