Biomolecular Interactions – MCQs

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1. Biomolecular interactions refer to:





2. The primary interaction stabilizing DNA double helix is:





3. Stacking interactions between DNA bases are:





4. Protein–protein interactions often involve:





5. The interaction between antigen and antibody is mainly:





6. Which force drives protein folding?





7. Van der Waals interactions are:





8. Hydrogen bonds are stronger than:





9. Salt bridges in proteins are formed by:





10. Enzyme–substrate binding is often explained by:





11. The dissociation constant (Kd) measures:





12. A low Kd value indicates:





13. Hydrophobic interactions are stronger in:





14. Which amino acids often form hydrogen bonds?





15. Disulfide bonds in proteins are:





16. Protein–DNA binding is often mediated by:





17. Transcription factors recognize DNA through:





18. Which biomolecular interaction is reversible?





19. Ligand–receptor interactions are often studied by:





20. Hydrophobic effect leads to:





21. Cooperative binding is best exemplified by:





22. The Hill coefficient measures:





23. A Hill coefficient greater than 1 indicates:





24. Molecular docking is a technique to:





25. Protein–lipid interactions are critical for:





26. The main driving force for micelle formation is:





27. Electrostatic interactions are weakened by:





28. Hydrogen bonds in water are approximately:




30. π–π interactions occur between:





31. Ligand binding to enzymes often alters:





32. The binding free energy (ΔG) of interactions is related to:





33. The main structural forces in collagen are:





34. In protein folding, chaperones prevent:





35. Specificity of enzyme–substrate interaction arises from:





36. DNA melting temperature (Tm) increases with:





37. Protein–RNA interactions are critical for:





38. Which is the strongest type of biomolecular interaction?





39. The molecular recognition process is guided by:





40. An example of allosteric regulation is:





41. The Bohr effect describes:





42. Cooperative ligand binding leads to:





43. Molecular crowding in cells affects:





44. Solvent dielectric constant influences:





45. Ligand–receptor specificity is mainly due to:





46. Cooperative protein unfolding transitions are studied using:





47. π–cation interactions occur between:





48. Enthalpic contributions in binding come from:





49. Entropic contributions in binding come from:





50. Biomolecular interactions are essential for: