The interaction energy between two opposite charges separated by 3Å in vacuum is -500 kJmol-1. The interaction energy between these two charges in water will be closest to (1) -1500 […]
Tag: CSIR protein PYQ
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CSIR NET Previous Year Questions on Biochemistry Stabilizing Interactions
Water Weakens Electrostatic Interactions: Coulomb’s Law Explained
How Does Water Affect Electrostatic Interactions? Coulomb’s law explains the force between two charged particles, but the solvent environment plays a crucial role in determining the strength of this interaction. […]
CSIR NET Previous Year Questions on Biochemistry Stabilizing Interactions
Hydrogen Bonding Between Hydrazine and Water
The maximum number of hydrogen bonds that can form between H2N – NH2 (hydrazine) and water is (1) 2 (2) 1 (3) 3 (4) 4 Hydrogen Bonding Between Hydrazine and […]
CSIR NET Previous Year Questions on Biochemistry Stabilizing Interactions
Optimal Hydrogen Bond Angle in Proteins
In proteins, hydrogen bonds form as follows: Donor (D)- H—-Acceptor (A). Hydrogen bond is more favorable if the angle between D-H and A is (1) <900 (2) 1800 (3) >1800 […]
CSIR NET Previous Year Questions on Biochemistry Atoms & Molecules
Isotopes: Hydrogen, Deuterium, Tritium, and Carbon-14 Decay
From the following statements, A. Hydrogen, Deuterium and Tritium differ in the number of protons B. Hydrogen, Deuterium and Tritium differ in the number of neutrons C. Both Deuterium and […]
CSIR PYQ Biochemistry-Conformation of Proteins
Understanding Stability and Instability in Protein Folding
Which of the following is most unstable condition in protein folding? (1) Non-polar side chain exposed to outside (2) Polar side chain present in core of protein (3) Non polar […]
CSIR PYQ Biochemistry-Conformation of Proteins
Protein Folding and Amino Acid Side Chain Distribution
41. Which one of the following is the most appropriate statement regarding folded proteins? (1) Charged amino acid side chains are always buried. (2) Charged amino acid side chains are […]
CSIR PYQ Biochemistry-Conformation of Proteins
Protein Folding: Favorable and Unfavorable Interactions
Which one of the following is unfavorable for protein folding? (1) Hydrophobic interaction (2) van der Waals interaction (3) Conformational entropy (4) Hydrogen bonding Factors Affecting Protein Folding: Favorable and […]
CSIR PYQ Biochemistry-Conformation of Proteins
Structural and Functional Analysis of a 30-Residue Polypeptide
The following observations are made on a 30-residue polypeptide (a) Unordered structure is observed in water but a helical conformation is observed in medium of low dielectric constant. (b)The peptide […]
CSIR PYQ Biochemistry-Conformation of Proteins
Understanding Protein Conformation: Circular Dichroism, Ramachandran Map, and β-Turns
Following are statements related to peptide/protein conformation. A. The circular dichroism spectra of collagen and a protein in α-helical conformation will be identical. B. The allowed region for the dihedral […]
