Fibrous and Globular Proteins Quiz | Fibrous and Globular Proteins Objective Type Questions & Answers

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Questions
21 Choose the correct category for milk protein casein out of the followings
A Nucleoprotein
B Phospho protein
C Lipoprotein
D Glycoprotein

Answer: Phospho protein
22 Which of the amino acids below is the uncharged derivative of an acidic amino acid?
A Cystine
B Tyrosine
C Glutamine
D Serine

Answer: Glutamine
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23 Which of the following amino acids in myoglobin, a globular protein, is highly likely to be localized within the interior of the molecule?
A Arginine
B Valine
C Aspartic acid
D Lysine

Answer: Valine
24 Which of the characteristics below apply to amino acid Glycine?
A Optically inactive
B Hydrophilic, basic and charged
C Hydrophobic
D Hydrophilic, acidic and charged

Answer: Optically inactive
25 Which one of the following amino acids may be considered a hydrophobic amino acid at physiological p H of 7.4?
A Isoleucine
B Arginine
C Aspartic acid
D Threonine

Answer: Isoleucine
26 A child with tall stature, loose joints, and detached retinas is found to have a mutation in collagen. Which of the following amino acids is the recurring amino acid most likely to be altered in mutations that distort collagen molecules?
A Glycine
B Tyrosine
C Tryptophan
D Tyrosine

Answer: Glycine
27 In scurvy, which amino acid that is normally part of collagen is not synthesized?
A Hydroxy Tryptophan
B Hydroxy Tyrosine
C Hydroxy Alanine
D Hydroxy Proline

Answer: Hydroxy Proline
28 The highest concentration of cystine can be found in-
A Melanin
B Keratin
C Collagen
D Myosin

Answer: Keratin
29 Which of the following amino acids is most compatible with an α- helical structure?
A Tryptophan
B Alanine
C Leucine
D Proline

Answer: Alanine
30 Choose the Anticancer peptide out of the followings-
A Bleomycin
B Methotrexate
C Cytosine Arabinoside
D Dideoxy Inosine

Answer: Bleomycin
31 Which out of the following is a peptide antibiotic?
A Erythromycin
B Gramicidin
C Ciprofloxacin
D Tetracycline

Answer: Gramicidin
32 All the below mentioned proteins are metalloproteins except-
A Carbonic anhydrase
B Xanthine oxidase
C Lactate dehydrogenase
D Superoxide dismutase

Answer: Lactate dehydrogenase
33 Which out of the following is not a haemo protein ?
A Catalase
B Myeloperoxidase
C Glutathione peroxidase
D Aconitase

Answer: Aconitase
34 Which of the following amino acid is a limiting amino acid in pulses?
A Leucine
B Lysine
C Methionine
D Glutamine

Answer: Methionine
35 Which out of the followings is not a fibrous protein?
A Carbonic anhydrase
B Collagen
C Fibrinogen
D Keratin

Answer: Carbonic anhydrase
36 Which of the following peptides is cyclic in nature-?
A Glutathione
B Gramicidin
C Met encephalin
D Leuencephalin

Answer: Gramicidin
37 The greatest buffering capacity at physiological p H would be provided by a protein rich in which of the following amino acids?
A Serine
B Cysteine
C Alanine
D Histidine

Answer: Histidine
38 Which out of the following amino acid is a precursor of niacin (Vitamin)?
A Tyrosine
B Threonine
C Tryptophan
D Phenylalanine

Answer: Tryptophan
39 All of the following amino acids are both glucogenic as well as ketogenic except
A Isoleucine
B Leucine
C Tyrosine
D Phenyl alanine

Answer: Leucine
40 All of the below mentioned amino acids can participate in hydrogen bonding except one
A Serine
B Cysteine
C Threonine
D Valine

Answer: Valine

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