Biomolecules  MCQs

MCQs of Biomolecules

Showing 61 to 70 out of 161 Questions
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61.
Which of the following compounds is not a sugar ?
(a) Malitriose
(b) Lactose
(c) Stachiose
(d) All the given
Answer:

Option (d)

62.
Which structure of protein is α-helix ?
(a) Primary
(b) Secondary
(c) Tertiary
(d) Quarternary
Answer:

Option (b)

63.
Which of the following is not a globular protein ?
(a) Insulin
(b) Albumin
(c) Mayocin
(d) Enzyme
Answer:

Option (c)

64.
Pyrimidine base is _____
(a) monocyclic
(b) dicyclic
(c) tricyclic
(d) in the form of open chain
Answer:

Option (a)

65.
Which of the following compounds is purine base ?
(a) Cytosine
(b) Thiamine
(c) Adenine
(d) Uracil
Answer:

Option (c)

66.
Nucleoside means _____
(a) Base + Acid
(b) Base + Sugar
(c) Base + Phosphate
(d) Base + Lipid
Answer:

Option (b)

67.
The observed angle of rotation of 2·0 g sucrose containing 20 ml of aqueous solution in a polarimeter tube of 15 cm length is + 15·3°. What is the specific rotation of this solution of sucrose ?
(a) 96·5°
(b) 102°
(c) 104°
(d) 102·9°
Answer:

Option (b)

68.
With which reagent glucose does not give addition reaction ?
(a) NaHSO3
(b) HCN
(c) R·Mg·X
(d) All of the above
Answer:

Option (a)

69.
Which reagent of the following does not reduce glucose ?
(a) Tollen's reagent
(b) Fehling's solution
(c) Schiff's reagent
(d) All of the above
Answer:

Option (c)

70.
Which colour is produced when schiff's reagent is added to glucose ?
(a) Violet
(b) Orange
(c) Green
(d) No colour
Answer:

Option (d)

Showing 61 to 70 out of 161 Questions
4 5 6 7 8 9