Question

The enzyme urease catalyzes the breakdown of urea in the body. Urease breaks urea down to 2NH3+CO2. This is an example of a hydrolysis reaction (urea plus water). For each equivalent of carbon dioxide (CO2), two equivalents of ammonia (NH3) are produced. Label the enzyme, substrate, enzyme–substrate complex, enzyme–product complex, and product in the enzymatic reaction for the breakdown of urea by urease using the induced-fit model.

Answer 1

Answer:

Enzyme = Urease

Substrate= Urea

Urease-urea complex = Enzyme-substrate complex

Urease-Ammonia, Carbon dioxide complex = Enzyme-product complex

Ammonia and Carbon Dioxide = Products

Explanation:

In order to answer the query, we need to review some of the definitions.

Enzymes are proteins which speed up chemical reactions. The substance on which enzyme exerts its effect is called Substrate.

The combination of Enzyme and substrate is called Enzyme-Substrate complex.

After the chemical reaction, the enzyme-substrate complex breaks into product and enzyme.

Induced-fit model was proposed by Koshland in which he stated that during the reaction of enzymes and substrate, the active site of enzyme modifies (changes shape) which helps it to perform its catalytic activity more efficiently.

Coming back to the scenario in question,

Enzyme = Urease (It is stated that it catalyzes the breakdown of urea)

Substrate= Urea (It is the substance on which urease enzyme acts)

Urease-urea complex = Enzyme-substrate complex

Urease-Ammonia and Carbon dioxide = Enzyme-product complex

Ammonia and Carbon Dioxide = Products