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Biochemistry | Page - 6 | Multiple Choice Questions (MCQ)

Q e50609 -
Xanthoproteic test is positive in proteins containing?
A. Sulphur amino acids
B. α-Amino acids
C. Aromatic amino acids
D. Aliphatic amino acids
Answer - C
Detail - No Details

Q daf7f7 -
Isoelectric point of amino acids is used for?
A. Crystallisation
B. Precipitation
C. Solubility
D. Reactivity
Answer - B
Detail - No Details

Q 86be05 -
When the net charge on an amino acid is zero, the pH is maintained as?
A. 4.5
B. 11.2
C. 7.0
D. 9.1
Answer - C
Detail - No Details

Q 870165 -
Proteins which are responsible for defence mechanism are called?
A. Antimetabolites
B. Antibodies
C. Antimycins
D. Apoproteins
Answer - B
Detail - No Details

Q 6b116c -
Insulin is a protein which controls?
A. Blood clotting
B. Metabolic pathway
C. Digestion
D. Kreb’s cycle
Answer - B
Detail - No Details

Q f80682 -
Proteinous substances which catalyze biochemical reactions are known as?
A. Activators
B. Catalysts
C. Enzymes
D. Hormones
Answer - C
Detail - No Details

Q 07ada9 -
All the following amino acids are optically active except?
A. Tryptophane
B. Phenylalanine
C. Valine
D. Glycine
Answer - D
Detail - No Details

Q f18bb5 -
Protein is a polymer of?
A. Sugars
B. Phenols
C. Amino acids
D. Carboxylic acids
Answer - C
Detail - No Details

Q c67acc -
All the following diuretics inhibit the carbonic anhydrase except?
A. Acetazolamide
B. Bumetanide
C. Furosemide
D. Ethacrynic acid
Answer - D
Detail - No Details

Q 27373f -
Phenylalanine, ornithine and methionine are involved in the biogenesis of?
A. Lysergic acid
B. Reserpine
C. L-Hyoscyamine
D. Papaverine
Answer - A
Detail - No Details

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