MCQ (Practice) - Enzyme (Level 1)


80 Questions MCQ Test | MCQ (Practice) - Enzyme (Level 1)


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This mock test of MCQ (Practice) - Enzyme (Level 1) for Class 11 helps you for every Class 11 entrance exam. This contains 80 Multiple Choice Questions for Class 11 MCQ (Practice) - Enzyme (Level 1) (mcq) to study with solutions a complete question bank. The solved questions answers in this MCQ (Practice) - Enzyme (Level 1) quiz give you a good mix of easy questions and tough questions. Class 11 students definitely take this MCQ (Practice) - Enzyme (Level 1) exercise for a better result in the exam. You can find other MCQ (Practice) - Enzyme (Level 1) extra questions, long questions & short questions for Class 11 on EduRev as well by searching above.
QUESTION: 1

An indispensible role in energy metabolism is played by -

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QUESTION: 2

Mineral activator needed for the enzymes aconitase of TCA cycle is -

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QUESTION: 3

If the temperature is incresed above 35°C

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QUESTION: 4

Which of the following is coenzyme-II ?

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QUESTION: 5

Where does the synthesis of enzyme occur in a cell -

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QUESTION: 6

Excess of ATP inhibits the enzyme-

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QUESTION: 7

Enzyme cytochrome oxidase can be inhibited by :

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QUESTION: 8

Different steps in respiration are controlled by -

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QUESTION: 9

Which one is both structural & functional (catalytic) protein :

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QUESTION: 10

The full form of NAD is -

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QUESTION: 11

First discovered Enzyme was -

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QUESTION: 12

Enzyme were discovered for the first time in -

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QUESTION: 13

Who coined the term enzyme -

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QUESTION: 14

Vitamin serves the function of -

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QUESTION: 15

Which of the follwoing is a coenzyme-

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QUESTION: 16

What is NADP -

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QUESTION: 17

The prosthetic group of various respiratory enzymes is -

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QUESTION: 18

Most enzymes consist of two parts these are -

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QUESTION: 19

The first enzyme is isolated in crystalline form was -

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QUESTION: 20

In plants enzymes are present in -

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QUESTION: 21

An enzyme is made up of -

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QUESTION: 22

Which of the following is not an enzyme ?

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QUESTION: 23

Enzyme capable of changing thier shape are called -

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QUESTION: 24

What is the chemical nature of the majority of prosthetic groups ?

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QUESTION: 25

Which of the following coenzyme is a derivative of pantothenic acid ? (vit-B complex) -

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QUESTION: 26

Which of the following is not consumed in a biochemical process ?

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QUESTION: 27

How the presence of an enzyme affects the activation energy of a reaction ?

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QUESTION: 28

The cheif enzyme found in yeast cell is ?

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QUESTION: 29

Which of the enzyme joins the broken strands of DNA ?

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QUESTION: 30

Inhibition of succinic dehydrogenase by malonate is an example of -

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QUESTION: 31

At a temperature below the freezing point an enzyme is -

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QUESTION: 32

Enzyme inhibition caused by a substrate analog is -

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QUESTION: 33

At boiling temperature an enzyme is -

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QUESTION: 34

Enzyme have very narrow optima for -

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QUESTION: 35

Which enzyme is without protein ?

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QUESTION: 36

Allosteric inhibition of enzyme was discovered by -

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QUESTION: 37

Enzyme concerned with transfer of electrons are -                 [MP PMT 2002]

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QUESTION: 38

At which pH enzymes of lysosomes are usually active ?          [MP PMT 2002]

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QUESTION: 39

Enzymes are made up of -              [CPMT 2002]

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QUESTION: 40

Hydrolytic enzymes, which act on low pH are called as ?                     [CPMT 2002]

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QUESTION: 41

Allosteric enzymes have allosteric sites for -

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QUESTION: 42

Substrate concentration at which an enzyme attains half of its max. velocity is ?

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QUESTION: 43

Part of active site of enzyme, where substrate is supported -

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QUESTION: 44

Enzymes, vitamins and hormones can beclassified into a single caregory of biological chemicals, becouse all of these -                       [AIPMT 2005]

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QUESTION: 45

Which of the following statements regarding enzyme inhibition is correct ?             [AIPMT 2005]

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QUESTION: 46

The catalytic efficiency of two different enzyme can be compared by the -                [AIPMT 2005]

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QUESTION: 47

The graph below shows the effect ofsubstrate concentration on the rate of reaction of the enzyme green-gram-phosphatase. What does the graph indicates ?                [AIIMS 2005]

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QUESTION: 48

An organic substance bound to an enzyme and essential for its activity is called -          [AIPMT 2006]

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QUESTION: 49

Who gave the name enzyme ?

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QUESTION: 50

Who was successful in isolating an enzyme in pure and crystallized form ?

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QUESTION: 51

Which was the first enzyme obtained in crystallized form ?

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QUESTION: 52

Which of these is Coenzyme i and Coenzymem 

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QUESTION: 53

Who discovered the enzyme called ribozyme ?

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QUESTION: 54

Which are called zymogen ?

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QUESTION: 55

What are the multiple molecular forms of an enzyme called ?

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QUESTION: 56

Which is the specific character of isoenzyme ?

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QUESTION: 57

Which of these characters is of enzymes ?

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QUESTION: 58

What is true about enzymes ?

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QUESTION: 59

Enzymes are affected by –

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QUESTION: 60

What is not true about activity of enzymes ?

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QUESTION: 61

What is turn over number of enzyme ?

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QUESTION: 62

How the effect of competitive inhibitors can be nullified ?

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QUESTION: 63

Which statement is correct about enzyme activity and pH ?

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QUESTION: 64

Sometimes the product binds the active site of the enzyme to reduce rate of reaction. What is it called?

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QUESTION: 65

The turn over number of enzymes is related with its –

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QUESTION: 66

In cytochrome, Fe++ is linked –

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QUESTION: 67

Organic substance loosely linked to the apoenzyme is called –

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QUESTION: 68

Which part of holoenzyme is proteinaceous ?

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QUESTION: 69

Which of these is not a coenzyme ?

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QUESTION: 70

What is the minimum energy value, besides the average energy of the substrate molecules in the reaction, which is essential to make the product ?

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QUESTION: 71

What is true about active sites of enzymes ?

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QUESTION: 72

Which are allosteric sites ?

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QUESTION: 73

According to the induced fit theory which are the two groups at the active site ?

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QUESTION: 74

Which of these are enzymes of the class oxidoreductases ?

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QUESTION: 75

Which are the enzymes of group transferase ?

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QUESTION: 76

Which of these are enzyme of isomerases ?

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QUESTION: 77

 

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QUESTION: 78

The lower value of K means –

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QUESTION: 79

Which one of the following is not true for iso enzmes ?

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QUESTION: 80

The figure given below shows the conversion of a substrate into product by an enzyme. In which one of the four otpion (1-4) the components of reaction labelled as A, B, C and D are identified correctly?                                                                                                                                                                            [AIPMT-2010 (Mains)]


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