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

July 27, 2018February 3, 20190243

Q.) Sulphur containing amino acid is

Valine

Asparagine

Leucine

Methionine

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

Valine

Methionine

Cysteine

Threonine

Q.) An example of sulphur containing amino acid is

2-Amino-3-mercaptopropanoic acid

2-Amino-3-hydroxypropanoic acid

2-Amino-3-methylbutanoic acid

Amino acetic acid

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

Nonpolar molecules

Dipolar ions

Positive and monovalent

Hydrophobic

Q.) The optically inactive amino acid is

Serine

Threonine

Glycine

Valine

Q.) pH (isoelectric pH) of alanine is

6.8

6.02

6.6

7.2

Q.) All proteins contain the

Different amino acids

Only a few amino acids

300 Amino acids occurring in nature

Same 20 amino acids

Q.) An aromatic amino acid is

Taurine

Lysine

Arginine

Tyrosine

Q.) Proteins contain

Only L- α - amino acids

DL-Amino acids

Both (A) and (B)

Only D-amino acids

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

All amino acids contain both positive and negative charges

All amino acids contain positively charged side chains

Some amino acids contain only positive charge

All amino acids contain negatively charged side chains

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Q.) Sulphur containing amino acid is

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

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.) pH (isoelectric pH) of alanine is

Q.) All proteins contain the

Q.) An aromatic amino acid is

Q.) Proteins contain

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

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