Which of the following is incorrect?

1. The ES complex formation is a transient phenomenon

2. The structure of the substrate gets transformed into the structure of product.

3. All the structures formed between substrate and product are called intermediates.

4. Intermediates are highly stable.

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Which of the following is  not true for the graph?

1. The reaction is exothermic

2. The reaction is endothermic

3. The product is more stable than substrate

4. The difference in average energy content of substrate from that of transition state is called activation energy.

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The role of an enzyme in a reaction is to/as

1. Decrease activation energy

2. Increase activation energy

3. Inorganic catalyst

4. Increase potential energy

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Which of the following is correct?

1. Enzyme has a active site so that a highly reactive enzyme-substrate complex is produced.

2. ES complex is short lived.

3. The formation of ES complex is essential for catalysis.

4. All of these

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Which of the following is incorrect?

1. The substrate binds to the active site of the enzyme

2. The binding of the substrate induces the enzyme to alter its shape.

3. The active site of the enzyme when it is in close proximity of the substrate breaks the chemical bonds of the substrate.

4. None of these

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Which of the following is correct for enzyme catalysed reaction?

1. Substrate is conveted into Enzyme

2. Substrate is consumed in the reaction completely

3. Substrate is converted to product

4. Enzyme is converted to product

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Which of the following is correct?

1. Enzymatic activity is maximum at its optimim pH and temperature.

2. Enzymatic activity declines both below and above the optimum value.

3. High temperatures destroys enzymatic activity

4. All of these

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Which of the following is incorrect?

1. Enzymatic activity is maximum at its optimim pH and temperature.

2. Enzymatic activity declines both below and above the optimum value.

3. Low temperatures destroys enzymatic activity

4. High temperatures destroys enzymatic activity

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Which of the following destroys the Enzymatic activity?

1. high temperature

2. low temperature

3. pH

4. Both B and C

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Which of the following factors can influence enzyme activity?

1. High temperature

2. pH

3. Substrate concentration

4. All of these

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