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Mdcat-past-papers - DUHS - Biology Quiz

Filters: Board: DUHS | Subject: Biology |
41. Most abundant protein in humans in:



42. Most abundant organic compound in mammalian cell are:



43. The terminal ends of chromosomes are called:



44. Which of the following is a conjugated molecule?



45. If the co-factor is tightly, permanently and covalently bonded to enzyme then it is called:



46. The view that active site of enzyme is flexible and when a substrate combines with it, it causes change in enzyme structure is known as:



47. Zinc ion is attached at the active site of the enzyme carboxypeptidase. The zinc ion functions as:



48. The catalytic activity of an enzyme is restricted to its small portion



49. Lock and key model for enzyme action proposed by Emil fischer suggests that:



50. Select a regulatory enzyme:



51. All of the following are the postulates of lock and key model, EXCEPT?



52. Enzymes are __________ in nature



53. What alters the shape of enzymes and makes them functional?



54. Which of the following is true about ATP?



55. Optimum pH of salivary amylase is:



56. Lactase converts lactose into:



57. Which type of enzyme would be most active in your gut after eating the loaf of bread?



58. An Enzyme is capable of acting on a wide range of related substances. Which of the following is a property of this enzyme?



59. Activation of all of the following enzymes need a regulatory molecule except:



60. What is the best physiological pH for optimum functioning for most of the cellular enzymes of human?



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