Identify the correct statement regarding enzymes.

  • Option 1)

    Enzymes are specific biological catalysts that can normally function at very high temperatures (T\sim 1000K).

  • Option 2)

    Enzymes are normally heterogeneous catalysts that are very specific in action.

  • Option 3)

    Enzymes are specific biological catalysts that cannot be poisoned.

  • Option 4)

    Enzymes are specific biological catalysts that possess well­defined active sites.

 

Answers (2)

As we learnt in

Lock and key hypothesis of enzyme action -

Enzymes molecules act like a lock whereas substrate acts like a key . Substrate fits in the active site of the enzyme and forms a complex which decompose to yield products

- wherein

 

 

Enzymes -

These are biological catalysts that enhances the rate of reaction by lowering the activation energy.

- wherein

Eg. Maltose amylase, carbonic anhydrase,etc.

 

 Enzymes are highly specific and substrate bind to their active sites.


Option 1)

Enzymes are specific biological catalysts that can normally function at very high temperatures (T\sim 1000K).

This option is incorrect

Option 2)

Enzymes are normally heterogeneous catalysts that are very specific in action.

This option is incorrect

Option 3)

Enzymes are specific biological catalysts that cannot be poisoned.

This option is incorrect

Option 4)

Enzymes are specific biological catalysts that possess well­defined active sites.

This option is correct

Option d is correct Kyunki enzyme Khaas biological catalyst hoga  Jisme achha se defined Jagah Hota h

 

 

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