Enzymology and Enzyme Structure

<p>Coenzyme Q (D)</p> Signup and view all the answers

<p>A metabolite that binds to the allosteric site and alters enzyme activity (D)</p> Signup and view all the answers

<p>It binds the substrate molecule and facilitates its transformation. (C)</p> Signup and view all the answers

<p>Enzymes are highly specific, typically binding only one substrate. (C)</p> Signup and view all the answers

<p>They decrease the activation energy, facilitating the reaction. (B)</p> Signup and view all the answers

<p>Transformation of the E-S complex. (D)</p> Signup and view all the answers

<p>Enzymatic reactions occur at a faster rate with less energy input. (D)</p> Signup and view all the answers

<p>Agents that modify the active site. (B)</p> Signup and view all the answers

<p>To enhance enzyme activity and assist in substrate binding. (C)</p> Signup and view all the answers

<p>Transition complex. (A)</p> Signup and view all the answers

<p>The number of substrate molecules converted to product per unit time (C)</p> Signup and view all the answers

<p>All enzyme active sites are occupied by substrate (B)</p> Signup and view all the answers

<p>Formation of product from substrate (A)</p> Signup and view all the answers

<p>To activate or inhibit other enzymes and affect overall reaction rates (B)</p> Signup and view all the answers

<p>Enzymes exhibit optimal activity within specific temperature and pH ranges (A)</p> Signup and view all the answers

<p>V0 increases until a maximum velocity is reached (C)</p> Signup and view all the answers

<p>Time duration of the experiment (A)</p> Signup and view all the answers

<p>Enzyme activity may decrease or become denatured (A)</p> Signup and view all the answers

A protein that speeds up a specific chemical reaction in living things.

The part of an enzyme where the substrate binds and the reaction happens.

Enzymes only bind to a particular substrate.

Enzymes increase the speed of reactions without being used up.

Changing how active an enzyme is.

The energy needed to start a chemical reaction.

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

A reaction accelerated by an enzyme.

A way to control enzyme activity by binding a molecule at a site other than the active site, influencing the enzyme's shape and activity.

The specific site on an allosteric protein where a modulator or effector molecule binds, changing the enzyme's shape and activity.

A small molecule that binds to an allosteric site of an enzyme, altering the enzyme's activity, either increasing (activator) or decreasing (inhibitor) it.

A way to regulate enzyme activity where a molecule is covalently attached to the enzyme, changing its activity; this attachment can be reversed.

A common type of reversible covalent modification where a phosphate group is added to an enzyme, changing its activity.

The study of how the rate of an enzyme-catalyzed reaction changes in response to different conditions, like substrate concentration or temperature.

The number of substrate molecules converted to product per unit of time. It indicates how quickly a reaction is happening.

The initial reaction rate, measured at the beginning of the reaction when product concentration is low and substrate concentration is high.

The fastest rate a reaction can achieve when all enzyme active sites are occupied by substrate.

Conditions like enzyme concentration, substrate concentration, pH, and temperature can influence how fast a reaction proceeds.

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

An enzyme that controls the rate of a metabolic pathway by being activated or inhibited. It acts as a switch.

Changes in the activity of regulatory enzymes often determine the overall speed of a metabolic pathway.