Biochemistry - Mock Test 100

Question 991

An example of α-amino acid not present in proteins but essential in mammalian metabolism is?

A) 3-Amino 3-hydroxypropanoic acid B) 2-Amino 3-hydroxybutanoic acid C) 2-Amino 4-mercaptobutanoic acid D) 2-Amino 3-mercaptopropanoic acid

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Question 992

Amino acid with side chain containing basic groups is?

A) 2-Amino 5-guanidovaleric acid B) 2-Pyrrolidine carboxylic acid C) 2-Amino 3-mercaptopropanoic acid D) 2-Amino propanoic acid

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Question 993

The functions of plasma albumin are?

A) Osmosis B) Transport C) Immunity D) both Aand B

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Question 994

An aromatic amino acid is?

A) Lysine B) Tyrosine C) Taurine D) Arginine

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Question 995

All the following are sulphur containing amino acids found in proteins except?

A) Cysteine B) Cystine C) Methionine D) Threonine

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Question 996

An example of sulphur containing amino acid is?

A) 2-Amino-3-mercaptopropanoic acid B) 2-Amino-3-methylbutanoic acid C) 2-Amino-3-hydroxypropanoic acid D) Amino acetic acid

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Question 997

Sulphur containing amino acid is?

A) Methionine B) Leucine C) Valine D) Asparagine

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Question 998

Since the pK values for aspartic acid are 2.0, 3.9 and 10.0, it follows that the isoelectric (pH) is?

A) 3 B) 3.9 C) 5.9 D) 6

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Question 999

pH (isoelectric pH) of alanine is?

A) 6.02 B) 6.6 C) 6.8 D) 7.2

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Question 1000

At neutral pH, a mixture of amino acids in solution would be predominantly?

A) Dipolar ions B) Nonpolar molecules C) Positive and monovalent D) Hydrophobic

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