Enzymology Quiz: Understanding Enzyme Functions

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

<p>Can involve both activation and inhibition (B)</p> Signup and view all the answers

<p>To increase the rate of the reaction by lowering the activation energy. (D)</p> Signup and view all the answers

<p>Active site (D)</p> Signup and view all the answers

<p>Their unique 3D structure and specific active site. (B)</p> Signup and view all the answers

<p>Enzymes provide a specific environment for the reaction to occur in the active site. (A)</p> Signup and view all the answers

<p>They lower the activation energy required for the reaction to proceed. (C)</p> Signup and view all the answers

<p>Enzymes temporarily bind to the substrate and change its shape to lower the activation energy. (C)</p> Signup and view all the answers

<p>They influence the enzyme's reaction rate. (C), They determine the substrate specificity of the enzyme. (D)</p> Signup and view all the answers

<p>They act as cofactors and help to stabilize the enzyme structure. (A)</p> Signup and view all the answers

<p>The reaction rate increases until it reaches a maximum velocity and then plateaus. (D)</p> Signup and view all the answers

<p>Maximum velocity (C)</p> Signup and view all the answers

<p>The reaction rate increases linearly. (B)</p> Signup and view all the answers

<p>The concentration of the product (B)</p> Signup and view all the answers

<p>It is responsible for controlling the overall rate of the pathway. (D)</p> Signup and view all the answers

<p>A series of consecutive enzymatic reactions where the product of one reaction becomes the substrate for the next. (D)</p> Signup and view all the answers

<p>They change their catalytic activity in response to cellular signals. (D)</p> Signup and view all the answers

<p>They are inversely proportional. (B)</p> Signup and view all the answers

A protein that catalyzes a specific chemical reaction.

The part of an enzyme that binds to the substrate and catalyzes the reaction.

Enzymes can bind only one specific substrate.

The speed at which reactants turn into products in a chemical reaction.

The minimum energy needed to start a chemical reaction.

The temporary complex formed when an enzyme binds to its substrate.

A high-energy state during a reaction where bonds are breaking and forming.

The process of modulating an enzyme's activity, often by altering the active site.

A regulatory enzyme whose catalytic activity is modulated by binding of metabolites at a non-active site.

The specific site on an allosteric enzyme where modulators bind to affect its activity.

Enzyme activity altered by covalent changes to amino acids, typically in response to hormones.

The protein portion of an enzyme that requires a cofactor for its activity.

Complex organic molecules that assist enzymes, often derived from vitamins.

The study of the rate of enzyme-catalyzed reactions and its changes due to experimental conditions.

The initial rate or velocity of a reaction, representing substrate conversion to product per unit time.

The amount of substrate available for an enzyme to act upon in a reaction.

The maximum rate of a reaction when all enzyme active sites are occupied by substrate.

The specific pH at which an enzyme's activity is maximized.

A series of enzymatic reactions where the product of one reaction becomes the substrate for the next.

An enzyme that can increase or decrease its activity, affecting the overall rate of a metabolic pathway.

Conditions like enzyme concentration, substrate concentration, pH, and temperature that affect reaction rates.