Biochemistry: Enzymes and Metabolic Reactions

<p>The affinity of the enzyme for the substrate (D)</p> Signup and view all the answers

<p>Optimum temperature (B)</p> Signup and view all the answers

<p>Light intensity (C)</p> Signup and view all the answers

<p>70°C (C)</p> Signup and view all the answers

<p>High substrate affinity (B)</p> Signup and view all the answers

<p>To decrease the activation energy of the reaction. (D)</p> Signup and view all the answers

<p>Enzymes do not change the reaction's equilibrium. (D)</p> Signup and view all the answers

<p>Enzymes are primarily made of protein, while ribozymes are made of RNA. (C)</p> Signup and view all the answers

<p>An enzyme will typically catalyze a single type of reaction using a specific molecule or chemically related molecules. (B)</p> Signup and view all the answers

<p>An enzyme that catalyzes hydrolysis reactions. (A)</p> Signup and view all the answers

<p>To indicate the specific reaction catalyzed by the enzyme within its subclass. (A)</p> Signup and view all the answers

<p>Carbonic anhydrase. (C)</p> Signup and view all the answers

<p>Substrate specificity. (A)</p> Signup and view all the answers

The protein component of an enzyme.

The non-protein component of an enzyme, often a metal ion or organic molecule.

The active form of an enzyme, containing both the protein (apoenzyme) and non-protein (cofactor) components.

The site on an enzyme where the substrate binds and the chemical reaction takes place.

The speed at which an enzyme converts a substrate to a product.

The temperature at which an enzyme exhibits maximum activity.

The pH at which an enzyme exhibits maximum activity.

Any substance that slows down or inhibits the rate of an enzyme-catalyzed reaction.

Biological catalysts that speed up chemical reactions in living organisms.

Enzymes are primarily proteins, but some are made of RNA, called ribozymes.

While enzymes make reactions happen faster, they don't change the final outcome of the reaction.

Each enzyme typically works with only one or a few specific molecules called substrates. This means they have high specificity.

Enzymes can be categorized into six main classes based on the type of reaction they catalyze, each with an assigned EC number.

Enzymes are incredibly efficient, accelerating reactions by factors of 10^3 to 10^8 times faster than without the enzyme.

The activation energy is the minimum amount of energy needed to start a chemical reaction.

Catalysts, like enzymes, are substances that speed up reactions by lowering the activation energy needed to start the reaction. They are not used up in the process.