Biochemistry - Mock Test 53

Question 521

If the amino group and a carboxylic group of the amino acid are attached to same carbon atom, the amino acid is called?

A) Alpha B) Beta C) Gamma D) Delta

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Question 522

The bond in proteins that is not hydrolysed under usual conditions of denaturation?

A) Hydrophobic bond B) Hydrogen bond C) Disulphide bond D) Peptide bonds

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Question 523

Immunoglobulins are characterized by their?

A) Heavy chains B) Molecular weight C) Light chains D) Electrophoretic behaviour

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Question 524

Number of amino acids present in the plant, animal and microbial proteins?

A) 20 B) 80 C) 150 D) 200

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Question 525

All amino acids have one asymmetric carbon atom, except?

A) Arginine B) Aspargine C) Histidine D) Glycine

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Question 526

2-Amino 3-OH propanoic acid is?

A) Glycine B) Alanine C) Valine D) Serine

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Question 527

In glutathione (a tripeptide) is present apart from Glutamic acid and cysteine?

A) Serine B) Glycine C) Leucine D) Phenyl alanine

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Question 528

Which of the followings gives a positive test for Ninhydrin?

A) Reducing sugars B) Triglycerides C) Alpha aminoacids D) Esterified Fats

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Question 529

The side chain of which of the following amino acid contain sulphur atom?

A) Methionine B) Threonine C) Leucine D) Tryptophan

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Question 530

The amino acid which has a pK near 4 and thus is negatively charged at pH 7 is?

A) Alanine B) Glutamic acid C) Glutamine D) Aspargine

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