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Enzymology — MCQs Biology

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1. Enzymes are primarily:





2. The substrate binds to the enzyme at the:





3. Enzyme activity is influenced by:





4. Cofactors are:





5. Coenzymes are:





6. Competitive inhibitors:





7. Non-competitive inhibitors:





8. Michaelis-Menten constant (Km) represents:





9. Vmax refers to:





10. Allosteric enzymes:





11. Enzyme specificity refers to:





12. The induced-fit model suggests:





13. The lock-and-key model suggests:





14. Enzyme units (U) measure:





15. Enzyme turnover number (kcat) refers to:





16. Irreversible inhibitors:





17. Zymogens are:





18. Examples of zymogens include:





19. Isoenzymes (isozymes) are:





20. Lineweaver-Burk plot is used to:





21. Enzymes accelerate reactions by:





22. Lyases catalyze:





23. Transferases catalyze:





24. Hydrolases catalyze:





25. Oxidoreductases catalyze:





26. Isomerases catalyze:





27. Ligases catalyze:





28. Enzyme inhibition can be reversed by:





29. Allosteric regulation involves:





30. Positive allosteric effectors:





31. Negative allosteric effectors:





32. Enzyme kinetics studies:





33. Proteolytic enzymes include:





34. Lipolytic enzymes include:





35. Glycolytic enzymes include:





36. Km value is inversely proportional to:





37. Feedback inhibition is a form of:





38. Enzyme units (U) are defined as:





39. Enzymes are mostly:





40. Ribozymes are:





41. Enzymes can be denatured by:





42. Temperature optimum refers to:





43. pH optimum refers to:





44. Isozymes allow:





45. Enzyme-substrate complex formation is explained by:





46. Km is a measure of:





47. Lineweaver-Burk plot is a plot of:





48. Enzyme induction refers to:





49. Enzyme repression refers to:





50. The coenzyme NAD+ is derived from:





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