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

	A	B	C	D
1.	Potential energy	Transition state	Activation Energy with enzyme	Activation energy with- out enzyme
2.	Transition State	Potential Energy	Activation Energy with-out enzyme	Activation energy with enzyme
3.	Activation energy with-out enzyme	Transition state	Activation energy with enzyme	Potential energy
4.	Activation energy with enzyme	Transition state	Activation energy with-out enzyme	Potential energy

Which of the following is correct?

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.All of these

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.

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

Transition state structure of the substrate formed during an enzymatic reaction is

1.transient but stable

2.permanent but unstable

3.transient and unstable

4.permanent and stable

Which of the following is correct for enzyme catalysed reaction?

1.Substrate is converted into Enzyme

2.Substrate is consumed in the reaction completely

3.Substrate is converted to product

4.Enzyme is converted to product

Which of the following is incorrect?

1.Enzymatic activity is maximum at its optimim p^H 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

Which of the following destroys the Enzymatic activity?

1.high temperature

2.low temperature

3.p^H

4.Both 2 and 3

Which of the following factors can influence enzyme activity?

1. High temperature

2. pH

3. Substrate concentration

4. All of these

The competitive inhibitor of enzyme succinic dehydrogenase is

1.succinate

2.malonate

3.malate

4.mannose