Topic

Biochemistry PYQs

105 previous year questions across 53 subtopics · answers and explanations included

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Showing 105 questions · page 4 of 6

61

Choose the correct order in terms of pKa

HardView answer

62

Which of the following are the sulfur containing amino acids? i. Methionine ii. Histidine iii. Leucine iv. Cysteine

MediumAmino Acid Structure & PropertiesView answer

63

Cellulose is a linear polymer of glucose with

EasyView answer

64

Arrange the following chemical bonds/interactions in the order of their strengths in vacuum - Hydrogen bond, Covalent bond, van der Waals attraction and Ionic bond:

MediumChemical Bonds & Intermolecular ForcesView answer

65

The amino acid residue with the least preference for any quadrant in the Ramachandran map is

HardView answer

66

Match the items in left column with those in the right column: [Table] Choose the correct answer from the options given below :

MediumBiochemical Concepts - Match the FollowingView answer

67

Which of the following amino acids is most likely to disrupt an \alpha -helix?

EasyView answer

68

Which one of the following properties of naturally occurring D-amino acids is INCORRECT:

MediumAmino Acid Properties - D & L FormsView answer

69

Which one of the following will NOT change upon adding an enzyme to a chemical reaction or changing the concentration of reactants or products? A. ΔG° B. K_eq C. ΔG

MediumThermodynamics & Reaction ParametersView answer

70

The methods utilized to determine the three dimensional structure of proteins are

EasyView answer

71

What are the cellular sites for protein glycosylation?

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72

The \beta -sheet rich structure of prion protein represents the

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73

Two proteins of molecular weights 1.0 \times 10^5 and 1.0 \times 10^4 Daltons were eluted from a gel filtration column at 220 ml and 300 ml respectively. The molecular weight of an unknown protein that elutes at 140 ml under the same conditions, will be

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74

Which type of post-translational modification does not occur in plastids?

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75

In the DNA helix, the GC and AT base pairs

MediumView answer

76

Which of the following methods first ionizes a protein before separation and detection?

EasyView answer

77

Epicatechin gallate (ECG) is a type of flavonoid found in which of the following?

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78

Two amino acids with negatively charged side chains are

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79

What will be the molarity of a 4 mg/ml solution of NaOH?

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80

A protein with 1000 amino acids was tagged with GFP. The molecular weight of GFP is 26 KDa. What will be the most likely molecular weight of the fused target protein?

MediumView answer