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PROTEINS AND AMINO ACIDS

Quiz by shivkanya

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14 questions
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  • Q1
    In sickle cell haemoglobin the position of 6 glutamyl residue of the B chain is normal adult haemoglobin is replaced by
    Aspartate
    Lysine
    Valine
    Glutamine
    30s
  • Q2
    Urea acid synthesis takes place in
    Muscle
    Liver
    Bone Marrow
    Kidney
    30s
  • Q3
    Which amino acid that contains a disulfide bond is
    cysteine
    cysteine
    methionine
    homocysteine
    30s
  • Q4
    An amino acids not involved in urea cycle is
    citrulline
    Arginine
    Ornithine
    Histidine
    30s
  • Q5
    At its isoelectric point, a protein has what charge
    Negative
    depends on sequence of the protein
    Positive
    No charge
    30s
  • Q6
    Urea synthesis requires five enzymes, which of these enzymes requires two ATPs
    ornintine carboxylase
    Arhinase
    Arginosuccinate
    carbomyl phosphates synthase I
    30s
  • Q7
    The bond that joins amino acids are called:
    Phosphodister bonds
    Ester bonds
    Glycosidic linkage
    Peptide bonds
    30s
  • Q8
    Which of the following property refers to ability to act as acid or base
    Zwitterionic
    Amphoteric
    UV absorptive
    Chirality
    30s
  • Q9
    Which one of the following tests is general tests for protein amino acids
    Millon's test
    Sakaguchi test
    Hopkins cole test
    Biuret test
    30s
  • Q10
    Egg white or mik used as antidote for heavy metal poisoning
    True
    False
    30s
  • Q11
    Which one of the following colour is developed when ninhydrin reagent is used for identification of protein
    white
    green
    black
    Purple
    30s
  • Q12
    Which one of the following amino acid will show positive test with Millons reagent
    Valine
    Glycine
    Tyrosine
    Alanine
    30s
  • Q13
    Proteins are held by which of the following covalent bonds
    hydrophobic bond
    ionic bonds
    Sulphide bonds
    hydrogen bonds
    30s
  • Q14
    Sagakuchi test is used to identify
    aldehyde group
    hydroxyl group
    Guanidino group
    carboxyl group
    30s

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