LMS

1 The reaction will proceed faster if the activation energy is? 

2 The energy required to start a reaction is called? 

3 An enzyme which requires a biological change in order to become active is called?

4 An enzyme without its cofactor is called: 

5 If the non-protein part of enzyme is covalently bonded to the enzyme it is known as?

6 Small organic, non-protein part that helps in enzyme reactions: 

7 An activated enzyme made up of a polypeptide with its cofactor is: 

8 Nicotinamide adenine dinucleotide is an example of:  

9 Co-enzyme require:  

10 Which of the following form weak linkage with enzyme? 

11 Co-factors are divided into groups:  

12 The substrate binds to specific region of enzyme called? 

13 All enzymes are: 

14 What does the active site of the enzyme determine? 

15 Enzymes showing substrate specificity are specific to how many substrates?

16 Which term is used to refer to an inactive enzyme precursor? 

17 Catalysts that increase the rate of biological chemical reaction are called:

18 Which of the following best describes a coenzyme?

19 Which statement about enzyme is incorrect? 

20 Active form of an enzyme: 

21 A cofactor made of inorganic ion which is detachable is called?

22 Enzymes are globular proteins because: 

23 A small organic, non-protein molecule that carries chemical groups between enzymes  is: 

24 Biological molecules which catalyze a biochemical reaction and remain unchanged  after completion of reaction are called? 

25 Enzymes bind with chemical reactant known as: 

26 Which of the following vitamin acts as a coenzyme 

27 If the non-protein part of enzyme is covalently bonded to the enzyme it is known as?

28 Enzyme reacts with substrate to form:  

29 Enzymes are __________________ in nature:  

30 Which type of bond are never formed when substrate fits into active site of enzyme?

31 The mechanism of enzyme activation is referred to as:  

32 The specificity of enzyme structure depends upon:  

33 Catalytic activity takes place at:  

34 Which statement about active site is not true?  

35 Type of bond present between enzyme and prosthetic group: 

36 Which one forms the raw material for coenzymes?  

37 The lock and key model of enzyme action was proposed by:  

38 The complex that forms when a substrate binds to enzyme is called:

39 Enzymes do not affect:  

40 Who proposed lock and key model of enzyme activity?  

41 In the lock and key model of enzyme activity, the substrate acts as the:

42 Enzymes work by which of the following? 

43 How many models are present for enzyme-substrate complex or reaction?

44 Which statement is incorrect about Lock and Key Model? 

45 Which types of bond are never formed when a substrate fits into the active site of an  enzyme? 

46 Koshland in 1959 proposed the modified form of which of the following?

47 Induced fit model was introduced by Koshland in which of the following year? 

48 Lock and key model was proposed by:  

49 Which of the following is false about concerning enzymes? 

50 Number of substrate molecules converted into product by one molecule of enzyme  active site per unit time is called? 

51 According to the induced fit model, what happens when an enzyme-substrate complex  is formed?

52 What affect do enzymes have on the activation energy of a reaction?

53 While bound to the active site, the substrate is converted into which of the following?

54 The primary function of cofactors is to? 

55 In enzyme catalytic reaction the substrate is first converted to a high energy state  called? 

56 Allosteric enzymes consist of multiple: 

57 Functions of enzymes include all of the following except: 

58 Upon increasing the temperature the shape of enzyme's active site?

59 The optimum pH for enzyme arginase is which of the following?

60 The optimum pH for the functioning of the enzyme pepsin is?

61 If we add more substrate to already occurring enzymatic reaction and it has no effect  on the rate reaction, the process is called? 

62 pH of salivary amylase is:  

63 It works in acidic medium:  

64 Extreme change in pH results in which of the following? 

65 What is meant by optimum temperature of an enzyme? 

66 Rate of reaction is double for rise of every _______________. 

67 Which of the following strategies of enzymatic inhibition is used by noncompetitive  inhibitors? 

68 If more substrate to an already occurring enzymatic reaction is added more enzyme  activity is seen because? 

69 The optimum pH for the functioning of pancreatic lipase is? 

70 A researcher has designed a new type of inhibitor that binds at the active site of an  enzyme. What type of inhibition does this molecule display? 

71 Which of the following changes could lead to loss of enzymatic function?

72 Which statement correctly describes why enzyme activity increases with increased  enzyme concentration? 

73 The rate of reaction of enzyme directly depends upon which of the following?

74 The enzyme-substrate complex is formed in which part of the enzyme molecule?

75 Which step, causes activation of catalytic site of an enzyme? 

76 If the concentration of enzyme is kept constant and amount of substrate is increased  a point is reached where increase in substrates concentration does not affect the  reaction rate because of? 

77 What is the optimum temperature for working of enzymes in human body? 

78 In acidic medium, amino acids carry positive charge and acts as: 

79 If we increase the concentration of substrate then increase in the enzyme activity is  due to which of the following?  

80 When we increase the pH then, enzyme reactivity is retarded due to: 

81 At low enzyme concentration, optimum pH and temperature, rate of reaction can be  increased by:  

82 Number of substrate molecules converted into product by one molecule of enzyme  active site per unit is called:  

83 The effect of competitive inhibitor on enzyme activity is such that it affects which of  the following? 

84 What is the characteristic of a non-competitive inhibitor? 

85 Reversible inhibitors form weak linkages with which of the following?

86 Inhibitors which block the enzyme by forming weak bond are called:

87 Reversible inhibitors form weak linkages with which of the following?

88 The end product of an enzymatic reaction inhibits formation of product in an earlier  step. This type of enzymatic regulation is known as? 

89 In uncompetitive inhibition, the inhibitor binds with: 

90 In mixed inhibition, the allosteric affects: 

91 The non-substrate molecules that bind to the allosteric sites are called?

92 A chemical substance which can react (in place of substrate) with the enzyme but is  not transformed into product/s and thus blocks the active site temporarily or  permanently is called? 

93 Malonic acid is an example of which type of inhibitors? 

94 In non-competitive inhibition, the quantity which remains same as the reaction  proceed is? 

95 A substance which binds at the active site of the enzyme but does not result in the  formation of the products is called: 

96 An inhibitor is added, disrupting the function of a particular enzyme. The  experimenter adds more substrate, and enzyme function increases again. These  results indicate the involvement of what type of inhibitor? 

97 What is meant by enzyme denaturation? 

98 The effect of competitive inhibitor on enzyme activity is such that it affects which of  the following? 

99 The non-substrate molecules that binds to the allosteric sites are called?

100 Which of the following best describes competitive inhibitors? 

101 ______ is a competitive inhibitor of succinic dehydrogenase. 

102 In competitive inhibition, a thing that binds to enzyme active site are?

103 Feedback inhibition in most metabolic pathways involves which type of enzymes?

104 These form weak linkages with enzymes:  

105 In uncompetitive inhibition, the inhibitor binds with:  

106 An allosteric enzyme will have:  

107 In mixed inhibition, the inhibitor binds to:  

108 Competitive inhibitors _______ enzyme activity.  

109 Structure of enzyme is altered by:  

110 In competitive inhibition, two things attached to enzyme’s active site are:

111 The structure of an enzyme is altered by which of the following inhibitors?

112 This enzyme is used to cut DNA molecule in rDNA technology

113 Restriction endonucleases found in 

114 Antibodies can be digested by using which of the following types of enzymes?

115 Ligases help in which of the following reactions? 

116 What type of enzymes is involved in biological oxidation? 

117 Which of the following is not a class of enzyme? 

118 Enzymes which are involved in transfer of electrons are known as:

119 The following enzymes are regulated by calcium ions: 

120 Enzyme which helps in changing the shape of molecule is called:

121 Phosphoglyceromutases are example of: